diff --git a/homeassistant/components/abode/__init__.py b/homeassistant/components/abode/__init__.py
index 591bae1a9cf665..3a64a5e31f0104 100644
--- a/homeassistant/components/abode/__init__.py
+++ b/homeassistant/components/abode/__init__.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers import discovery
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['abodepy==0.15.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by goabode.com"
diff --git a/homeassistant/components/abode/alarm_control_panel.py b/homeassistant/components/abode/alarm_control_panel.py
index d7426e04166dc5..d1d75b7417ea46 100644
--- a/homeassistant/components/abode/alarm_control_panel.py
+++ b/homeassistant/components/abode/alarm_control_panel.py
@@ -8,8 +8,6 @@
 
 from . import ATTRIBUTION, DOMAIN as ABODE_DOMAIN, AbodeDevice
 
-DEPENDENCIES = ['abode']
-
 _LOGGER = logging.getLogger(__name__)
 
 ICON = 'mdi:security'
diff --git a/homeassistant/components/abode/binary_sensor.py b/homeassistant/components/abode/binary_sensor.py
index 874723420ed811..e3f74e9f4ec12e 100644
--- a/homeassistant/components/abode/binary_sensor.py
+++ b/homeassistant/components/abode/binary_sensor.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['abode']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up a sensor for an Abode device."""
diff --git a/homeassistant/components/abode/camera.py b/homeassistant/components/abode/camera.py
index d37644eccc397e..d0e4e833029fc0 100644
--- a/homeassistant/components/abode/camera.py
+++ b/homeassistant/components/abode/camera.py
@@ -9,8 +9,6 @@
 
 from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
 
-DEPENDENCIES = ['abode']
-
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=90)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/abode/cover.py b/homeassistant/components/abode/cover.py
index c40159164dc4db..4c868daf4ba932 100644
--- a/homeassistant/components/abode/cover.py
+++ b/homeassistant/components/abode/cover.py
@@ -5,8 +5,6 @@
 
 from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
 
-DEPENDENCIES = ['abode']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/abode/light.py b/homeassistant/components/abode/light.py
index 9e88acce41f053..6b3e5025c51405 100644
--- a/homeassistant/components/abode/light.py
+++ b/homeassistant/components/abode/light.py
@@ -10,8 +10,6 @@
 
 from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
 
-DEPENDENCIES = ['abode']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/abode/lock.py b/homeassistant/components/abode/lock.py
index 0f568a4ace2492..c1272a3de5f405 100644
--- a/homeassistant/components/abode/lock.py
+++ b/homeassistant/components/abode/lock.py
@@ -5,8 +5,6 @@
 
 from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
 
-DEPENDENCIES = ['abode']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/abode/sensor.py b/homeassistant/components/abode/sensor.py
index ef6941c76d8b5f..b7e8fc1a118b0a 100644
--- a/homeassistant/components/abode/sensor.py
+++ b/homeassistant/components/abode/sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['abode']
-
 # Sensor types: Name, icon
 SENSOR_TYPES = {
     'temp': ['Temperature', DEVICE_CLASS_TEMPERATURE],
diff --git a/homeassistant/components/abode/switch.py b/homeassistant/components/abode/switch.py
index 3e3ce031855fd0..74d1ea57bad445 100644
--- a/homeassistant/components/abode/switch.py
+++ b/homeassistant/components/abode/switch.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['abode']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up Abode switch devices."""
diff --git a/homeassistant/components/acer_projector/switch.py b/homeassistant/components/acer_projector/switch.py
index df6fb8816aae47..242f3f4a009d59 100644
--- a/homeassistant/components/acer_projector/switch.py
+++ b/homeassistant/components/acer_projector/switch.py
@@ -9,8 +9,6 @@
     STATE_ON, STATE_OFF, STATE_UNKNOWN, CONF_NAME, CONF_FILENAME)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyserial==3.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_TIMEOUT = 'timeout'
diff --git a/homeassistant/components/ads/__init__.py b/homeassistant/components/ads/__init__.py
index 92c6ecb3335147..ba49f8abd9a3ec 100644
--- a/homeassistant/components/ads/__init__.py
+++ b/homeassistant/components/ads/__init__.py
@@ -14,8 +14,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pyads==3.0.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_ADS = 'data_ads'
diff --git a/homeassistant/components/ads/binary_sensor.py b/homeassistant/components/ads/binary_sensor.py
index baa44cb498fe04..b6f3a54e437192 100644
--- a/homeassistant/components/ads/binary_sensor.py
+++ b/homeassistant/components/ads/binary_sensor.py
@@ -13,8 +13,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'ADS binary sensor'
-DEPENDENCIES = ['ads']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADS_VAR): cv.string,
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
diff --git a/homeassistant/components/ads/light.py b/homeassistant/components/ads/light.py
index 49961565dced77..5168f49acdce08 100644
--- a/homeassistant/components/ads/light.py
+++ b/homeassistant/components/ads/light.py
@@ -12,7 +12,6 @@
     AdsEntity, STATE_KEY_BRIGHTNESS, STATE_KEY_STATE
 
 _LOGGER = logging.getLogger(__name__)
-DEPENDENCIES = ['ads']
 DEFAULT_NAME = 'ADS Light'
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADS_VAR): cv.string,
diff --git a/homeassistant/components/ads/sensor.py b/homeassistant/components/ads/sensor.py
index e74b8753d4b042..415eea09ddf4b6 100644
--- a/homeassistant/components/ads/sensor.py
+++ b/homeassistant/components/ads/sensor.py
@@ -14,8 +14,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = "ADS sensor"
-DEPENDENCIES = ['ads']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADS_VAR): cv.string,
     vol.Optional(CONF_ADS_FACTOR): cv.positive_int,
diff --git a/homeassistant/components/ads/switch.py b/homeassistant/components/ads/switch.py
index 0dfbeb811a068b..23e130f26958ef 100644
--- a/homeassistant/components/ads/switch.py
+++ b/homeassistant/components/ads/switch.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['ads']
-
 DEFAULT_NAME = 'ADS Switch'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/aftership/sensor.py b/homeassistant/components/aftership/sensor.py
index eefbb299a07125..fae3e38c96b3a3 100644
--- a/homeassistant/components/aftership/sensor.py
+++ b/homeassistant/components/aftership/sensor.py
@@ -13,8 +13,6 @@
 from homeassistant.util import Throttle
 from .const import DOMAIN
 
-REQUIREMENTS = ['pyaftership==0.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = 'Information provided by AfterShip'
diff --git a/homeassistant/components/airvisual/sensor.py b/homeassistant/components/airvisual/sensor.py
index 7fad7bb35be0ec..55670020133054 100644
--- a/homeassistant/components/airvisual/sensor.py
+++ b/homeassistant/components/airvisual/sensor.py
@@ -13,7 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pyairvisual==3.0.1']
 _LOGGER = getLogger(__name__)
 
 ATTR_CITY = 'city'
diff --git a/homeassistant/components/aladdin_connect/cover.py b/homeassistant/components/aladdin_connect/cover.py
index 01146fecbb667c..70c85fd58a5c9b 100644
--- a/homeassistant/components/aladdin_connect/cover.py
+++ b/homeassistant/components/aladdin_connect/cover.py
@@ -9,8 +9,6 @@
                                  STATE_OPENING, STATE_CLOSING, STATE_OPEN)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['aladdin_connect==0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 NOTIFICATION_ID = 'aladdin_notification'
diff --git a/homeassistant/components/alarmdecoder/__init__.py b/homeassistant/components/alarmdecoder/__init__.py
index 5b1296b39de2c3..b4d1a2e0b9f7d7 100644
--- a/homeassistant/components/alarmdecoder/__init__.py
+++ b/homeassistant/components/alarmdecoder/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.util import dt as dt_util
 from homeassistant.components.binary_sensor import DEVICE_CLASSES_SCHEMA
 
-REQUIREMENTS = ['alarmdecoder==1.13.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'alarmdecoder'
diff --git a/homeassistant/components/alarmdecoder/alarm_control_panel.py b/homeassistant/components/alarmdecoder/alarm_control_panel.py
index d7eced933ddbd1..51645b516b98d0 100644
--- a/homeassistant/components/alarmdecoder/alarm_control_panel.py
+++ b/homeassistant/components/alarmdecoder/alarm_control_panel.py
@@ -13,8 +13,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['alarmdecoder']
-
 SERVICE_ALARM_TOGGLE_CHIME = 'alarmdecoder_alarm_toggle_chime'
 ALARM_TOGGLE_CHIME_SCHEMA = vol.Schema({
     vol.Required(ATTR_CODE): cv.string,
diff --git a/homeassistant/components/alarmdecoder/binary_sensor.py b/homeassistant/components/alarmdecoder/binary_sensor.py
index 09e63b4d664348..91ff8b381b57b3 100644
--- a/homeassistant/components/alarmdecoder/binary_sensor.py
+++ b/homeassistant/components/alarmdecoder/binary_sensor.py
@@ -8,8 +8,6 @@
     CONF_ZONE_RFID, CONF_ZONE_TYPE, CONF_ZONES, SIGNAL_REL_MESSAGE,
     SIGNAL_RFX_MESSAGE, SIGNAL_ZONE_FAULT, SIGNAL_ZONE_RESTORE, ZONE_SCHEMA)
 
-DEPENDENCIES = ['alarmdecoder']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_RF_BIT0 = 'rf_bit0'
diff --git a/homeassistant/components/alarmdecoder/sensor.py b/homeassistant/components/alarmdecoder/sensor.py
index 88371dad17a345..9fb37d62376bc6 100644
--- a/homeassistant/components/alarmdecoder/sensor.py
+++ b/homeassistant/components/alarmdecoder/sensor.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['alarmdecoder']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up for AlarmDecoder sensor devices."""
diff --git a/homeassistant/components/alarmdotcom/alarm_control_panel.py b/homeassistant/components/alarmdotcom/alarm_control_panel.py
index ea581aca747fc8..5919bf84f41eb8 100644
--- a/homeassistant/components/alarmdotcom/alarm_control_panel.py
+++ b/homeassistant/components/alarmdotcom/alarm_control_panel.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyalarmdotcom==0.3.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Alarm.com'
diff --git a/homeassistant/components/alexa/__init__.py b/homeassistant/components/alexa/__init__.py
index 062d698d5122a8..862605b64b5700 100644
--- a/homeassistant/components/alexa/__init__.py
+++ b/homeassistant/components/alexa/__init__.py
@@ -17,8 +17,6 @@
 CONF_FLASH_BRIEFINGS = 'flash_briefings'
 CONF_SMART_HOME = 'smart_home'
 
-DEPENDENCIES = ['http']
-
 ALEXA_ENTITY_SCHEMA = vol.Schema({
     vol.Optional(smart_home.CONF_DESCRIPTION): cv.string,
     vol.Optional(smart_home.CONF_DISPLAY_CATEGORIES): cv.string,
diff --git a/homeassistant/components/alpha_vantage/sensor.py b/homeassistant/components/alpha_vantage/sensor.py
index 0eb57e5b27aeee..9ea6797a56efc3 100644
--- a/homeassistant/components/alpha_vantage/sensor.py
+++ b/homeassistant/components/alpha_vantage/sensor.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['alpha_vantage==2.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CLOSE = 'close'
diff --git a/homeassistant/components/amazon_polly/tts.py b/homeassistant/components/amazon_polly/tts.py
index d29ae32fb5723f..4511a587a60c53 100644
--- a/homeassistant/components/amazon_polly/tts.py
+++ b/homeassistant/components/amazon_polly/tts.py
@@ -6,8 +6,6 @@
 from homeassistant.components.tts import PLATFORM_SCHEMA, Provider
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['boto3==1.9.16']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_REGION = 'region_name'
diff --git a/homeassistant/components/ambient_station/__init__.py b/homeassistant/components/ambient_station/__init__.py
index 944d4e14e7d26d..2c185c3bc71de5 100644
--- a/homeassistant/components/ambient_station/__init__.py
+++ b/homeassistant/components/ambient_station/__init__.py
@@ -20,8 +20,6 @@
     ATTR_LAST_DATA, CONF_APP_KEY, DATA_CLIENT, DOMAIN, TOPIC_UPDATE,
     TYPE_BINARY_SENSOR, TYPE_SENSOR)
 
-REQUIREMENTS = ['aioambient==0.3.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_CONFIG = 'config'
diff --git a/homeassistant/components/ambient_station/binary_sensor.py b/homeassistant/components/ambient_station/binary_sensor.py
index 04a38901683d94..02f7590c307eed 100644
--- a/homeassistant/components/ambient_station/binary_sensor.py
+++ b/homeassistant/components/ambient_station/binary_sensor.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['ambient_station']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/ambient_station/sensor.py b/homeassistant/components/ambient_station/sensor.py
index b394dc558e63c6..9c50d97fb0361c 100644
--- a/homeassistant/components/ambient_station/sensor.py
+++ b/homeassistant/components/ambient_station/sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['ambient_station']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/amcrest/__init__.py b/homeassistant/components/amcrest/__init__.py
index a4c020efcdfa13..3a0a983fceb90f 100644
--- a/homeassistant/components/amcrest/__init__.py
+++ b/homeassistant/components/amcrest/__init__.py
@@ -12,9 +12,6 @@
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['amcrest==1.3.0']
-DEPENDENCIES = ['ffmpeg']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_AUTHENTICATION = 'authentication'
diff --git a/homeassistant/components/amcrest/binary_sensor.py b/homeassistant/components/amcrest/binary_sensor.py
index 113918ed041c3e..b591616a88d585 100644
--- a/homeassistant/components/amcrest/binary_sensor.py
+++ b/homeassistant/components/amcrest/binary_sensor.py
@@ -7,8 +7,6 @@
 from homeassistant.const import CONF_NAME, CONF_BINARY_SENSORS
 from . import DATA_AMCREST, BINARY_SENSORS
 
-DEPENDENCIES = ['amcrest']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=5)
diff --git a/homeassistant/components/amcrest/camera.py b/homeassistant/components/amcrest/camera.py
index f361c4e0183e6b..07f5d403ba8742 100644
--- a/homeassistant/components/amcrest/camera.py
+++ b/homeassistant/components/amcrest/camera.py
@@ -12,8 +12,6 @@
 
 from . import DATA_AMCREST, STREAM_SOURCE_LIST, TIMEOUT
 
-DEPENDENCIES = ['amcrest', 'ffmpeg']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/amcrest/sensor.py b/homeassistant/components/amcrest/sensor.py
index 119520e6a03b5e..56cb021052e319 100644
--- a/homeassistant/components/amcrest/sensor.py
+++ b/homeassistant/components/amcrest/sensor.py
@@ -7,8 +7,6 @@
 
 from . import DATA_AMCREST, SENSORS
 
-DEPENDENCIES = ['amcrest']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=10)
diff --git a/homeassistant/components/amcrest/switch.py b/homeassistant/components/amcrest/switch.py
index 0bbd290b3ac253..90f750d17978d4 100644
--- a/homeassistant/components/amcrest/switch.py
+++ b/homeassistant/components/amcrest/switch.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['amcrest']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/ampio/air_quality.py b/homeassistant/components/ampio/air_quality.py
index f7aa98aec7c27c..339f490bae54f9 100644
--- a/homeassistant/components/ampio/air_quality.py
+++ b/homeassistant/components/ampio/air_quality.py
@@ -11,8 +11,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['asmog==0.0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = 'Data provided by Ampio'
diff --git a/homeassistant/components/android_ip_webcam/__init__.py b/homeassistant/components/android_ip_webcam/__init__.py
index 600efd55a16a1d..dfb6d143e9ae95 100644
--- a/homeassistant/components/android_ip_webcam/__init__.py
+++ b/homeassistant/components/android_ip_webcam/__init__.py
@@ -21,8 +21,6 @@
 from homeassistant.components.mjpeg.camera import (
     CONF_MJPEG_URL, CONF_STILL_IMAGE_URL)
 
-REQUIREMENTS = ['pydroid-ipcam==0.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_AUD_CONNS = 'Audio Connections'
diff --git a/homeassistant/components/android_ip_webcam/binary_sensor.py b/homeassistant/components/android_ip_webcam/binary_sensor.py
index c058c44c5034e1..dbe50d8186245d 100644
--- a/homeassistant/components/android_ip_webcam/binary_sensor.py
+++ b/homeassistant/components/android_ip_webcam/binary_sensor.py
@@ -3,8 +3,6 @@
 
 from . import CONF_HOST, CONF_NAME, DATA_IP_WEBCAM, KEY_MAP, AndroidIPCamEntity
 
-DEPENDENCIES = ['android_ip_webcam']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/android_ip_webcam/sensor.py b/homeassistant/components/android_ip_webcam/sensor.py
index 4d29493d64fba7..9748b6ba548b2b 100644
--- a/homeassistant/components/android_ip_webcam/sensor.py
+++ b/homeassistant/components/android_ip_webcam/sensor.py
@@ -5,8 +5,6 @@
     CONF_HOST, CONF_NAME, CONF_SENSORS, DATA_IP_WEBCAM, ICON_MAP, KEY_MAP,
     AndroidIPCamEntity)
 
-DEPENDENCIES = ['android_ip_webcam']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/android_ip_webcam/switch.py b/homeassistant/components/android_ip_webcam/switch.py
index 0304c5747f71ae..e894913f5a468b 100644
--- a/homeassistant/components/android_ip_webcam/switch.py
+++ b/homeassistant/components/android_ip_webcam/switch.py
@@ -5,8 +5,6 @@
     CONF_HOST, CONF_NAME, CONF_SWITCHES, DATA_IP_WEBCAM, ICON_MAP, KEY_MAP,
     AndroidIPCamEntity)
 
-DEPENDENCIES = ['android_ip_webcam']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/androidtv/media_player.py b/homeassistant/components/androidtv/media_player.py
index 706ef6f8402430..2677144a144f40 100644
--- a/homeassistant/components/androidtv/media_player.py
+++ b/homeassistant/components/androidtv/media_player.py
@@ -18,8 +18,6 @@
 
 ANDROIDTV_DOMAIN = 'androidtv'
 
-REQUIREMENTS = ['androidtv==0.0.15']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_ANDROIDTV = SUPPORT_PAUSE | SUPPORT_PLAY | \
diff --git a/homeassistant/components/anel_pwrctrl/switch.py b/homeassistant/components/anel_pwrctrl/switch.py
index b9b3070b97e737..7552e35fe4b237 100644
--- a/homeassistant/components/anel_pwrctrl/switch.py
+++ b/homeassistant/components/anel_pwrctrl/switch.py
@@ -10,8 +10,6 @@
 from homeassistant.const import (CONF_HOST, CONF_PASSWORD, CONF_USERNAME)
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['anel_pwrctrl-homeassistant==0.0.1.dev2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PORT_RECV = 'port_recv'
diff --git a/homeassistant/components/anthemav/media_player.py b/homeassistant/components/anthemav/media_player.py
index c7ee579bc17cb0..1a335fc2ce6061 100644
--- a/homeassistant/components/anthemav/media_player.py
+++ b/homeassistant/components/anthemav/media_player.py
@@ -13,8 +13,6 @@
     STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['anthemav==1.1.10']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'anthemav'
diff --git a/homeassistant/components/apcupsd/__init__.py b/homeassistant/components/apcupsd/__init__.py
index aab6f6dda018c6..d4649db0203c37 100644
--- a/homeassistant/components/apcupsd/__init__.py
+++ b/homeassistant/components/apcupsd/__init__.py
@@ -8,8 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['apcaccess==0.0.13']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_TYPE = 'type'
diff --git a/homeassistant/components/apcupsd/binary_sensor.py b/homeassistant/components/apcupsd/binary_sensor.py
index 445dab9b0744a0..367b3c2b9b5065 100644
--- a/homeassistant/components/apcupsd/binary_sensor.py
+++ b/homeassistant/components/apcupsd/binary_sensor.py
@@ -8,8 +8,6 @@
 from homeassistant.components import apcupsd
 
 DEFAULT_NAME = 'UPS Online Status'
-DEPENDENCIES = [apcupsd.DOMAIN]
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
 })
diff --git a/homeassistant/components/apcupsd/sensor.py b/homeassistant/components/apcupsd/sensor.py
index 09f9b324bdd863..ae1ad10223d75e 100644
--- a/homeassistant/components/apcupsd/sensor.py
+++ b/homeassistant/components/apcupsd/sensor.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = [apcupsd.DOMAIN]
-
 SENSOR_PREFIX = 'UPS '
 SENSOR_TYPES = {
     'alarmdel': ['Alarm Delay', '', 'mdi:alarm'],
diff --git a/homeassistant/components/api/__init__.py b/homeassistant/components/api/__init__.py
index beba17ee2ea03b..0e860854af4ca7 100644
--- a/homeassistant/components/api/__init__.py
+++ b/homeassistant/components/api/__init__.py
@@ -33,8 +33,6 @@
 ATTR_VERSION = 'version'
 
 DOMAIN = 'api'
-DEPENDENCIES = ['http']
-
 STREAM_PING_PAYLOAD = 'ping'
 STREAM_PING_INTERVAL = 50  # seconds
 
diff --git a/homeassistant/components/apns/notify.py b/homeassistant/components/apns/notify.py
index d7f6559fe7eaad..365bdbcb4f557e 100644
--- a/homeassistant/components/apns/notify.py
+++ b/homeassistant/components/apns/notify.py
@@ -13,8 +13,6 @@
 from homeassistant.components.notify import (
     ATTR_DATA, ATTR_TARGET, DOMAIN, PLATFORM_SCHEMA, BaseNotificationService)
 
-REQUIREMENTS = ['apns2==0.3.0']
-
 APNS_DEVICES = 'apns.yaml'
 CONF_CERTFILE = 'cert_file'
 CONF_TOPIC = 'topic'
diff --git a/homeassistant/components/apple_tv/__init__.py b/homeassistant/components/apple_tv/__init__.py
index b265dc533eb85c..0ebe29ed47c9b4 100644
--- a/homeassistant/components/apple_tv/__init__.py
+++ b/homeassistant/components/apple_tv/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyatv==0.3.12']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'apple_tv'
diff --git a/homeassistant/components/apple_tv/media_player.py b/homeassistant/components/apple_tv/media_player.py
index e00ce6ed13bcd2..9698ef4c704a47 100644
--- a/homeassistant/components/apple_tv/media_player.py
+++ b/homeassistant/components/apple_tv/media_player.py
@@ -14,8 +14,6 @@
 
 from . import ATTR_ATV, ATTR_POWER, DATA_APPLE_TV, DATA_ENTITIES
 
-DEPENDENCIES = ['apple_tv']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_APPLE_TV = SUPPORT_TURN_ON | SUPPORT_TURN_OFF | SUPPORT_PLAY_MEDIA | \
diff --git a/homeassistant/components/apple_tv/remote.py b/homeassistant/components/apple_tv/remote.py
index 25b500ac09d6ea..2839e3a5324c81 100644
--- a/homeassistant/components/apple_tv/remote.py
+++ b/homeassistant/components/apple_tv/remote.py
@@ -4,8 +4,6 @@
 
 from . import ATTR_ATV, ATTR_POWER, DATA_APPLE_TV
 
-DEPENDENCIES = ['apple_tv']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/aqualogic/__init__.py b/homeassistant/components/aqualogic/__init__.py
index a4f83b573f73b7..65718463218859 100644
--- a/homeassistant/components/aqualogic/__init__.py
+++ b/homeassistant/components/aqualogic/__init__.py
@@ -11,8 +11,6 @@
                                  EVENT_HOMEASSISTANT_STOP)
 from homeassistant.helpers import config_validation as cv
 
-REQUIREMENTS = ["aqualogic==1.0"]
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'aqualogic'
diff --git a/homeassistant/components/aqualogic/sensor.py b/homeassistant/components/aqualogic/sensor.py
index dc06a2127e941d..454cdbd7f6b505 100644
--- a/homeassistant/components/aqualogic/sensor.py
+++ b/homeassistant/components/aqualogic/sensor.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['aqualogic']
-
 TEMP_UNITS = [TEMP_CELSIUS, TEMP_FAHRENHEIT]
 PERCENT_UNITS = ['%', '%']
 SALT_UNITS = ['g/L', 'PPM']
diff --git a/homeassistant/components/aqualogic/switch.py b/homeassistant/components/aqualogic/switch.py
index 21e573f944b6d2..b8bd8e41244c79 100644
--- a/homeassistant/components/aqualogic/switch.py
+++ b/homeassistant/components/aqualogic/switch.py
@@ -10,8 +10,6 @@
 
 from . import DOMAIN, UPDATE_TOPIC
 
-DEPENDENCIES = ['aqualogic']
-
 _LOGGER = logging.getLogger(__name__)
 
 SWITCH_TYPES = {
diff --git a/homeassistant/components/aquostv/media_player.py b/homeassistant/components/aquostv/media_player.py
index 0ffe48d21ec61f..a4e88f02a59fbe 100644
--- a/homeassistant/components/aquostv/media_player.py
+++ b/homeassistant/components/aquostv/media_player.py
@@ -15,8 +15,6 @@
     CONF_USERNAME, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['sharp_aquos_rc==0.3.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Sharp Aquos TV'
diff --git a/homeassistant/components/arduino/__init__.py b/homeassistant/components/arduino/__init__.py
index 351122e74f0e0f..a6841e075643ef 100644
--- a/homeassistant/components/arduino/__init__.py
+++ b/homeassistant/components/arduino/__init__.py
@@ -8,8 +8,6 @@
 from homeassistant.const import CONF_PORT
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['PyMata==2.14']
-
 _LOGGER = logging.getLogger(__name__)
 
 BOARD = None
diff --git a/homeassistant/components/arduino/sensor.py b/homeassistant/components/arduino/sensor.py
index ff758ea58470b5..0cc6e006b890c0 100644
--- a/homeassistant/components/arduino/sensor.py
+++ b/homeassistant/components/arduino/sensor.py
@@ -14,8 +14,6 @@
 CONF_PINS = 'pins'
 CONF_TYPE = 'analog'
 
-DEPENDENCIES = ['arduino']
-
 PIN_SCHEMA = vol.Schema({
     vol.Required(CONF_NAME): cv.string,
 })
diff --git a/homeassistant/components/arduino/switch.py b/homeassistant/components/arduino/switch.py
index 947c5188766cd1..92e91196a9aff5 100644
--- a/homeassistant/components/arduino/switch.py
+++ b/homeassistant/components/arduino/switch.py
@@ -8,8 +8,6 @@
 from homeassistant.const import CONF_NAME
 import homeassistant.helpers.config_validation as cv
 
-DEPENDENCIES = ['arduino']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PINS = 'pins'
diff --git a/homeassistant/components/arlo/__init__.py b/homeassistant/components/arlo/__init__.py
index cbb720778e5e7e..38230c2f05fe80 100644
--- a/homeassistant/components/arlo/__init__.py
+++ b/homeassistant/components/arlo/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.event import track_time_interval
 from homeassistant.helpers.dispatcher import dispatcher_send
 
-REQUIREMENTS = ['pyarlo==0.2.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by arlo.netgear.com"
diff --git a/homeassistant/components/arlo/alarm_control_panel.py b/homeassistant/components/arlo/alarm_control_panel.py
index 3557ed125c6cda..a7addfb86eac7b 100644
--- a/homeassistant/components/arlo/alarm_control_panel.py
+++ b/homeassistant/components/arlo/alarm_control_panel.py
@@ -22,8 +22,6 @@
 CONF_AWAY_MODE_NAME = 'away_mode_name'
 CONF_NIGHT_MODE_NAME = 'night_mode_name'
 
-DEPENDENCIES = ['arlo']
-
 DISARMED = 'disarmed'
 
 ICON = 'mdi:security'
diff --git a/homeassistant/components/arlo/camera.py b/homeassistant/components/arlo/camera.py
index d4b00f0062503a..166e0781044c19 100644
--- a/homeassistant/components/arlo/camera.py
+++ b/homeassistant/components/arlo/camera.py
@@ -13,8 +13,6 @@
 
 from . import DATA_ARLO, DEFAULT_BRAND, SIGNAL_UPDATE_ARLO
 
-DEPENDENCIES = ['arlo', 'ffmpeg']
-
 _LOGGER = logging.getLogger(__name__)
 
 ARLO_MODE_ARMED = 'armed'
diff --git a/homeassistant/components/arlo/sensor.py b/homeassistant/components/arlo/sensor.py
index e08669eb80b60e..f83caec386b843 100644
--- a/homeassistant/components/arlo/sensor.py
+++ b/homeassistant/components/arlo/sensor.py
@@ -17,8 +17,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['arlo']
-
 # sensor_type [ description, unit, icon ]
 SENSOR_TYPES = {
     'last_capture': ['Last', None, 'run-fast'],
diff --git a/homeassistant/components/aruba/device_tracker.py b/homeassistant/components/aruba/device_tracker.py
index ed1fee25a6c837..cde144e68f6924 100644
--- a/homeassistant/components/aruba/device_tracker.py
+++ b/homeassistant/components/aruba/device_tracker.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pexpect==4.6.0']
-
 _DEVICES_REGEX = re.compile(
     r'(?P<name>([^\s]+)?)\s+' +
     r'(?P<ip>([0-9]{1,3}[\.]){3}[0-9]{1,3})\s+' +
diff --git a/homeassistant/components/arwn/sensor.py b/homeassistant/components/arwn/sensor.py
index aef43c4b401556..94b552c6eba7e5 100644
--- a/homeassistant/components/arwn/sensor.py
+++ b/homeassistant/components/arwn/sensor.py
@@ -10,7 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mqtt']
 DOMAIN = 'arwn'
 
 DATA_ARWN = 'arwn'
diff --git a/homeassistant/components/asterisk_cdr/mailbox.py b/homeassistant/components/asterisk_cdr/mailbox.py
index db5d4e8d6eef12..647067b60d46d6 100644
--- a/homeassistant/components/asterisk_cdr/mailbox.py
+++ b/homeassistant/components/asterisk_cdr/mailbox.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['asterisk_mbox']
-
 MAILBOX_NAME = 'asterisk_cdr'
 
 
diff --git a/homeassistant/components/asterisk_mbox/__init__.py b/homeassistant/components/asterisk_mbox/__init__.py
index d8d3b194cd7f16..a354226bbc06ab 100644
--- a/homeassistant/components/asterisk_mbox/__init__.py
+++ b/homeassistant/components/asterisk_mbox/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_send, dispatcher_connect)
 
-REQUIREMENTS = ['asterisk_mbox==0.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'asterisk_mbox'
diff --git a/homeassistant/components/asterisk_mbox/mailbox.py b/homeassistant/components/asterisk_mbox/mailbox.py
index a3e7c3f4d61c13..f79c8922214f57 100644
--- a/homeassistant/components/asterisk_mbox/mailbox.py
+++ b/homeassistant/components/asterisk_mbox/mailbox.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['asterisk_mbox']
-
 SIGNAL_MESSAGE_REQUEST = 'asterisk_mbox.message_request'
 SIGNAL_MESSAGE_UPDATE = 'asterisk_mbox.message_updated'
 
diff --git a/homeassistant/components/asuswrt/__init__.py b/homeassistant/components/asuswrt/__init__.py
index 9b004b5bc04fc4..cc51a15f8e8715 100644
--- a/homeassistant/components/asuswrt/__init__.py
+++ b/homeassistant/components/asuswrt/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 
-REQUIREMENTS = ['aioasuswrt==1.1.21']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PUB_KEY = 'pub_key'
diff --git a/homeassistant/components/asuswrt/device_tracker.py b/homeassistant/components/asuswrt/device_tracker.py
index d115e640ffa863..68641f670aa267 100644
--- a/homeassistant/components/asuswrt/device_tracker.py
+++ b/homeassistant/components/asuswrt/device_tracker.py
@@ -5,8 +5,6 @@
 
 from . import DATA_ASUSWRT
 
-DEPENDENCIES = ['asuswrt']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/asuswrt/sensor.py b/homeassistant/components/asuswrt/sensor.py
index ac80a447e28716..8ae629bd12d98b 100644
--- a/homeassistant/components/asuswrt/sensor.py
+++ b/homeassistant/components/asuswrt/sensor.py
@@ -5,8 +5,6 @@
 
 from . import DATA_ASUSWRT
 
-DEPENDENCIES = ['asuswrt']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/august/__init__.py b/homeassistant/components/august/__init__.py
index 8e749dca46e5f7..e18c25706c1708 100644
--- a/homeassistant/components/august/__init__.py
+++ b/homeassistant/components/august/__init__.py
@@ -15,8 +15,6 @@
 
 _CONFIGURING = {}
 
-REQUIREMENTS = ['py-august==0.7.0']
-
 DEFAULT_TIMEOUT = 10
 ACTIVITY_FETCH_LIMIT = 10
 ACTIVITY_INITIAL_FETCH_LIMIT = 20
diff --git a/homeassistant/components/august/binary_sensor.py b/homeassistant/components/august/binary_sensor.py
index 3a69d41177d6c5..d1f696458029d6 100644
--- a/homeassistant/components/august/binary_sensor.py
+++ b/homeassistant/components/august/binary_sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['august']
-
 SCAN_INTERVAL = timedelta(seconds=5)
 
 
diff --git a/homeassistant/components/august/camera.py b/homeassistant/components/august/camera.py
index 53a9d78bc60419..0bf8a28f904889 100644
--- a/homeassistant/components/august/camera.py
+++ b/homeassistant/components/august/camera.py
@@ -7,8 +7,6 @@
 
 from . import DATA_AUGUST, DEFAULT_TIMEOUT
 
-DEPENDENCIES = ['august']
-
 SCAN_INTERVAL = timedelta(seconds=5)
 
 
diff --git a/homeassistant/components/august/lock.py b/homeassistant/components/august/lock.py
index e112eaa2592c31..5ad2bdc3b5bc25 100644
--- a/homeassistant/components/august/lock.py
+++ b/homeassistant/components/august/lock.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['august']
-
 SCAN_INTERVAL = timedelta(seconds=5)
 
 
diff --git a/homeassistant/components/auth/__init__.py b/homeassistant/components/auth/__init__.py
index d0157158aca6b2..f1deaf0cb856f4 100644
--- a/homeassistant/components/auth/__init__.py
+++ b/homeassistant/components/auth/__init__.py
@@ -138,8 +138,6 @@
 from . import mfa_setup_flow
 
 DOMAIN = 'auth'
-DEPENDENCIES = ['http']
-
 WS_TYPE_CURRENT_USER = 'auth/current_user'
 SCHEMA_WS_CURRENT_USER = websocket_api.BASE_COMMAND_MESSAGE_SCHEMA.extend({
     vol.Required('type'): WS_TYPE_CURRENT_USER,
diff --git a/homeassistant/components/automatic/device_tracker.py b/homeassistant/components/automatic/device_tracker.py
index 8abd81e63bea6d..04e069a04f97b1 100644
--- a/homeassistant/components/automatic/device_tracker.py
+++ b/homeassistant/components/automatic/device_tracker.py
@@ -18,8 +18,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import async_track_time_interval
 
-REQUIREMENTS = ['aioautomatic==0.6.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_FUEL_LEVEL = 'fuel_level'
@@ -34,8 +32,6 @@
 DATA_REFRESH_TOKEN = 'refresh_token'
 DEFAULT_SCOPE = ['location', 'trip', 'vehicle:events', 'vehicle:profile']
 DEFAULT_TIMEOUT = 5
-DEPENDENCIES = ['http']
-
 EVENT_AUTOMATIC_UPDATE = 'automatic_update'
 
 FULL_SCOPE = DEFAULT_SCOPE + ['current_location']
diff --git a/homeassistant/components/automation/__init__.py b/homeassistant/components/automation/__init__.py
index b1470582d59232..fa8b77da768dc2 100644
--- a/homeassistant/components/automation/__init__.py
+++ b/homeassistant/components/automation/__init__.py
@@ -21,7 +21,6 @@
 from homeassistant.util.dt import utcnow
 
 DOMAIN = 'automation'
-DEPENDENCIES = ['group']
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
 
 GROUP_NAME_ALL_AUTOMATIONS = 'all automations'
diff --git a/homeassistant/components/automation/litejet.py b/homeassistant/components/automation/litejet.py
index 20c689d74cf438..51ec5baccfd4aa 100644
--- a/homeassistant/components/automation/litejet.py
+++ b/homeassistant/components/automation/litejet.py
@@ -9,8 +9,6 @@
 import homeassistant.util.dt as dt_util
 from homeassistant.helpers.event import track_point_in_utc_time
 
-DEPENDENCIES = ['litejet']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_NUMBER = 'number'
diff --git a/homeassistant/components/automation/mqtt.py b/homeassistant/components/automation/mqtt.py
index ff89cd47024c16..837a22362b51d1 100644
--- a/homeassistant/components/automation/mqtt.py
+++ b/homeassistant/components/automation/mqtt.py
@@ -8,8 +8,6 @@
 from homeassistant.const import (CONF_PLATFORM, CONF_PAYLOAD)
 import homeassistant.helpers.config_validation as cv
 
-DEPENDENCIES = ['mqtt']
-
 CONF_ENCODING = 'encoding'
 CONF_TOPIC = 'topic'
 DEFAULT_ENCODING = 'utf-8'
diff --git a/homeassistant/components/avion/light.py b/homeassistant/components/avion/light.py
index 65172025b56b51..b138b8bf61f4b0 100644
--- a/homeassistant/components/avion/light.py
+++ b/homeassistant/components/avion/light.py
@@ -12,8 +12,6 @@
     CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['avion==0.10']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_AVION_LED = SUPPORT_BRIGHTNESS
diff --git a/homeassistant/components/awair/sensor.py b/homeassistant/components/awair/sensor.py
index 7fdcc6735495c1..85f18e87d13f86 100644
--- a/homeassistant/components/awair/sensor.py
+++ b/homeassistant/components/awair/sensor.py
@@ -15,8 +15,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle, dt
 
-REQUIREMENTS = ['python_awair==0.0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_SCORE = 'score'
diff --git a/homeassistant/components/aws/__init__.py b/homeassistant/components/aws/__init__.py
index a15e56e9de89cd..9533d2c776d157 100644
--- a/homeassistant/components/aws/__init__.py
+++ b/homeassistant/components/aws/__init__.py
@@ -26,8 +26,6 @@
     DOMAIN,
 )
 
-REQUIREMENTS = ["aiobotocore==0.10.2"]
-
 _LOGGER = logging.getLogger(__name__)
 
 AWS_CREDENTIAL_SCHEMA = vol.Schema(
diff --git a/homeassistant/components/aws/notify.py b/homeassistant/components/aws/notify.py
index 48b80b64ce2ee6..3a6193f403d936 100644
--- a/homeassistant/components/aws/notify.py
+++ b/homeassistant/components/aws/notify.py
@@ -21,8 +21,6 @@
     DATA_SESSIONS,
 )
 
-DEPENDENCIES = ["aws"]
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/axis/__init__.py b/homeassistant/components/axis/__init__.py
index e9ed37477a5a02..0cfa8923682d8b 100644
--- a/homeassistant/components/axis/__init__.py
+++ b/homeassistant/components/axis/__init__.py
@@ -11,8 +11,6 @@
 from .const import CONF_CAMERA, CONF_EVENTS, DEFAULT_TRIGGER_TIME, DOMAIN
 from .device import AxisNetworkDevice, get_device
 
-REQUIREMENTS = ['axis==19']
-
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: cv.schema_with_slug_keys(DEVICE_SCHEMA),
 }, extra=vol.ALLOW_EXTRA)
diff --git a/homeassistant/components/axis/binary_sensor.py b/homeassistant/components/axis/binary_sensor.py
index 30e0e759a2cda3..c4393380351dc3 100644
--- a/homeassistant/components/axis/binary_sensor.py
+++ b/homeassistant/components/axis/binary_sensor.py
@@ -11,8 +11,6 @@
 
 from .const import DOMAIN as AXIS_DOMAIN, LOGGER
 
-DEPENDENCIES = [AXIS_DOMAIN]
-
 
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up a Axis binary sensor."""
diff --git a/homeassistant/components/axis/camera.py b/homeassistant/components/axis/camera.py
index 62b694a99bb971..11368339e0dfae 100644
--- a/homeassistant/components/axis/camera.py
+++ b/homeassistant/components/axis/camera.py
@@ -11,8 +11,6 @@
 
 from .const import DOMAIN as AXIS_DOMAIN
 
-DEPENDENCIES = [AXIS_DOMAIN]
-
 AXIS_IMAGE = 'http://{}:{}/axis-cgi/jpg/image.cgi'
 AXIS_VIDEO = 'http://{}:{}/axis-cgi/mjpg/video.cgi'
 AXIS_STREAM = 'rtsp://{}:{}@{}/axis-media/media.amp?videocodec=h264'
diff --git a/homeassistant/components/baidu/tts.py b/homeassistant/components/baidu/tts.py
index fbe27591ef535c..faf62e92651e5f 100644
--- a/homeassistant/components/baidu/tts.py
+++ b/homeassistant/components/baidu/tts.py
@@ -7,8 +7,6 @@
 from homeassistant.const import CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ["baidu-aip==1.6.6"]
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORTED_LANGUAGES = ['zh']
diff --git a/homeassistant/components/bbb_gpio/__init__.py b/homeassistant/components/bbb_gpio/__init__.py
index 7749af8f335c48..85ea5753739bb0 100644
--- a/homeassistant/components/bbb_gpio/__init__.py
+++ b/homeassistant/components/bbb_gpio/__init__.py
@@ -4,8 +4,6 @@
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-REQUIREMENTS = ['Adafruit_BBIO==1.0.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'bbb_gpio'
diff --git a/homeassistant/components/bbb_gpio/binary_sensor.py b/homeassistant/components/bbb_gpio/binary_sensor.py
index 1ee371dcc2a6ac..bcc45a4af32027 100644
--- a/homeassistant/components/bbb_gpio/binary_sensor.py
+++ b/homeassistant/components/bbb_gpio/binary_sensor.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['bbb_gpio']
-
 CONF_PINS = 'pins'
 CONF_BOUNCETIME = 'bouncetime'
 CONF_INVERT_LOGIC = 'invert_logic'
diff --git a/homeassistant/components/bbb_gpio/switch.py b/homeassistant/components/bbb_gpio/switch.py
index 3ad46fd61aedfd..49b4c5de19cc04 100644
--- a/homeassistant/components/bbb_gpio/switch.py
+++ b/homeassistant/components/bbb_gpio/switch.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['bbb_gpio']
-
 CONF_PINS = 'pins'
 CONF_INITIAL = 'initial'
 CONF_INVERT_LOGIC = 'invert_logic'
diff --git a/homeassistant/components/bbox/device_tracker.py b/homeassistant/components/bbox/device_tracker.py
index badbcdc8a0bf56..f70969aa61bc9b 100644
--- a/homeassistant/components/bbox/device_tracker.py
+++ b/homeassistant/components/bbox/device_tracker.py
@@ -12,8 +12,6 @@
 from homeassistant.util import Throttle
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['pybbox==0.0.5-alpha']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_HOST = '192.168.1.254'
diff --git a/homeassistant/components/bbox/sensor.py b/homeassistant/components/bbox/sensor.py
index 5b3c31d1ddf241..80fa82b30fc7f1 100644
--- a/homeassistant/components/bbox/sensor.py
+++ b/homeassistant/components/bbox/sensor.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pybbox==0.0.5-alpha']
-
 _LOGGER = logging.getLogger(__name__)
 
 BANDWIDTH_MEGABITS_SECONDS = 'Mb/s'  # type: str
diff --git a/homeassistant/components/bh1750/sensor.py b/homeassistant/components/bh1750/sensor.py
index e30eededa51b28..eaee023ce8616b 100644
--- a/homeassistant/components/bh1750/sensor.py
+++ b/homeassistant/components/bh1750/sensor.py
@@ -9,9 +9,6 @@
 from homeassistant.const import CONF_NAME, DEVICE_CLASS_ILLUMINANCE
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['i2csense==0.0.4',
-                'smbus-cffi==0.5.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_I2C_ADDRESS = 'i2c_address'
diff --git a/homeassistant/components/bitcoin/sensor.py b/homeassistant/components/bitcoin/sensor.py
index 3bc14637a87631..6ccb10f50e6115 100644
--- a/homeassistant/components/bitcoin/sensor.py
+++ b/homeassistant/components/bitcoin/sensor.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['blockchain==1.4.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by blockchain.info"
diff --git a/homeassistant/components/blackbird/media_player.py b/homeassistant/components/blackbird/media_player.py
index c66bc412160f0e..be0538a89e94d7 100644
--- a/homeassistant/components/blackbird/media_player.py
+++ b/homeassistant/components/blackbird/media_player.py
@@ -14,8 +14,6 @@
     STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyblackbird==0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_BLACKBIRD = SUPPORT_TURN_ON | SUPPORT_TURN_OFF | SUPPORT_SELECT_SOURCE
diff --git a/homeassistant/components/blink/__init__.py b/homeassistant/components/blink/__init__.py
index 488209e3689fc3..397ee097cae24e 100644
--- a/homeassistant/components/blink/__init__.py
+++ b/homeassistant/components/blink/__init__.py
@@ -10,8 +10,6 @@
     CONF_BINARY_SENSORS, CONF_SENSORS, CONF_FILENAME,
     CONF_MONITORED_CONDITIONS, TEMP_FAHRENHEIT)
 
-REQUIREMENTS = ['blinkpy==0.13.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'blink'
diff --git a/homeassistant/components/blink/alarm_control_panel.py b/homeassistant/components/blink/alarm_control_panel.py
index 75e645dff5f3f9..8cc89d90b2f889 100644
--- a/homeassistant/components/blink/alarm_control_panel.py
+++ b/homeassistant/components/blink/alarm_control_panel.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['blink']
-
 ICON = 'mdi:security'
 
 
diff --git a/homeassistant/components/blink/binary_sensor.py b/homeassistant/components/blink/binary_sensor.py
index 466b73caf5fd5a..4c268989d32bac 100644
--- a/homeassistant/components/blink/binary_sensor.py
+++ b/homeassistant/components/blink/binary_sensor.py
@@ -4,8 +4,6 @@
 
 from . import BINARY_SENSORS, BLINK_DATA
 
-DEPENDENCIES = ['blink']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the blink binary sensors."""
diff --git a/homeassistant/components/blink/camera.py b/homeassistant/components/blink/camera.py
index 1da3080e3ff074..d1301319a81263 100644
--- a/homeassistant/components/blink/camera.py
+++ b/homeassistant/components/blink/camera.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['blink']
-
 ATTR_VIDEO_CLIP = 'video'
 ATTR_IMAGE = 'image'
 
diff --git a/homeassistant/components/blink/sensor.py b/homeassistant/components/blink/sensor.py
index 0e97db9d7d410d..6fb8be8e4ea71f 100644
--- a/homeassistant/components/blink/sensor.py
+++ b/homeassistant/components/blink/sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['blink']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up a Blink sensor."""
diff --git a/homeassistant/components/blinksticklight/light.py b/homeassistant/components/blinksticklight/light.py
index 0d4c7b736f3d3d..8eab6afaeb7289 100644
--- a/homeassistant/components/blinksticklight/light.py
+++ b/homeassistant/components/blinksticklight/light.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-REQUIREMENTS = ['blinkstick==1.1.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_SERIAL = 'serial'
diff --git a/homeassistant/components/blinkt/light.py b/homeassistant/components/blinkt/light.py
index 57d19172614c9f..cb3e854b3888a9 100644
--- a/homeassistant/components/blinkt/light.py
+++ b/homeassistant/components/blinkt/light.py
@@ -11,8 +11,6 @@
 from homeassistant.const import CONF_NAME
 import homeassistant.util.color as color_util
 
-REQUIREMENTS = ['blinkt==0.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_BLINKT = (SUPPORT_BRIGHTNESS | SUPPORT_COLOR)
diff --git a/homeassistant/components/blockchain/sensor.py b/homeassistant/components/blockchain/sensor.py
index def1dc3309f9a9..436e2979a6e06a 100644
--- a/homeassistant/components/blockchain/sensor.py
+++ b/homeassistant/components/blockchain/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.const import (CONF_NAME, ATTR_ATTRIBUTION)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['python-blockchain-api==0.0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by blockchain.info"
diff --git a/homeassistant/components/bloomsky/binary_sensor.py b/homeassistant/components/bloomsky/binary_sensor.py
index 8d4a89a017908c..b17c4e4c25781e 100644
--- a/homeassistant/components/bloomsky/binary_sensor.py
+++ b/homeassistant/components/bloomsky/binary_sensor.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['bloomsky']
-
 SENSOR_TYPES = {
     'Rain': 'moisture',
     'Night': None,
diff --git a/homeassistant/components/bloomsky/camera.py b/homeassistant/components/bloomsky/camera.py
index a2e1d8e2d3a59d..a748ff2b5b8905 100644
--- a/homeassistant/components/bloomsky/camera.py
+++ b/homeassistant/components/bloomsky/camera.py
@@ -7,8 +7,6 @@
 
 from . import BLOOMSKY
 
-DEPENDENCIES = ['bloomsky']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up access to BloomSky cameras."""
diff --git a/homeassistant/components/bloomsky/sensor.py b/homeassistant/components/bloomsky/sensor.py
index 6909c57eec4e87..e7d4bc5c8eb0e5 100644
--- a/homeassistant/components/bloomsky/sensor.py
+++ b/homeassistant/components/bloomsky/sensor.py
@@ -12,8 +12,6 @@
 
 LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['bloomsky']
-
 # These are the available sensors
 SENSOR_TYPES = ['Temperature',
                 'Humidity',
diff --git a/homeassistant/components/bluesound/media_player.py b/homeassistant/components/bluesound/media_player.py
index c4cd3572e75c3b..080afeea280426 100644
--- a/homeassistant/components/bluesound/media_player.py
+++ b/homeassistant/components/bluesound/media_player.py
@@ -29,8 +29,6 @@
 from homeassistant.util import Throttle
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['xmltodict==0.11.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_MASTER = 'master'
diff --git a/homeassistant/components/bluetooth_le_tracker/device_tracker.py b/homeassistant/components/bluetooth_le_tracker/device_tracker.py
index dfb5fa073b93de..f1aab4e1fd5a34 100644
--- a/homeassistant/components/bluetooth_le_tracker/device_tracker.py
+++ b/homeassistant/components/bluetooth_le_tracker/device_tracker.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pygatt[GATTTOOL]==3.2.0']
-
 BLE_PREFIX = 'BLE_'
 MIN_SEEN_NEW = 5
 
diff --git a/homeassistant/components/bluetooth_tracker/device_tracker.py b/homeassistant/components/bluetooth_tracker/device_tracker.py
index 3a4aa8880012d1..d464e87ce640fe 100644
--- a/homeassistant/components/bluetooth_tracker/device_tracker.py
+++ b/homeassistant/components/bluetooth_tracker/device_tracker.py
@@ -13,8 +13,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pybluez==0.22', 'bt_proximity==0.1.2']
-
 BT_PREFIX = 'BT_'
 
 CONF_REQUEST_RSSI = 'request_rssi'
diff --git a/homeassistant/components/bme280/sensor.py b/homeassistant/components/bme280/sensor.py
index 73982ecc628bb0..66b4ba672589ad 100644
--- a/homeassistant/components/bme280/sensor.py
+++ b/homeassistant/components/bme280/sensor.py
@@ -13,9 +13,6 @@
 from homeassistant.util import Throttle
 from homeassistant.util.temperature import celsius_to_fahrenheit
 
-REQUIREMENTS = ['i2csense==0.0.4',
-                'smbus-cffi==0.5.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_I2C_ADDRESS = 'i2c_address'
diff --git a/homeassistant/components/bme680/sensor.py b/homeassistant/components/bme680/sensor.py
index 8f515cc469a265..73fe827be6ba20 100644
--- a/homeassistant/components/bme680/sensor.py
+++ b/homeassistant/components/bme680/sensor.py
@@ -13,9 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util.temperature import celsius_to_fahrenheit
 
-REQUIREMENTS = ['bme680==1.0.5',
-                'smbus-cffi==0.5.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_I2C_ADDRESS = 'i2c_address'
diff --git a/homeassistant/components/bmw_connected_drive/__init__.py b/homeassistant/components/bmw_connected_drive/__init__.py
index e1ac30120d2115..10c58696740043 100644
--- a/homeassistant/components/bmw_connected_drive/__init__.py
+++ b/homeassistant/components/bmw_connected_drive/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.event import track_utc_time_change
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['bimmer_connected==0.5.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'bmw_connected_drive'
diff --git a/homeassistant/components/bmw_connected_drive/binary_sensor.py b/homeassistant/components/bmw_connected_drive/binary_sensor.py
index deab157292d2f3..8769fcf7d6205b 100644
--- a/homeassistant/components/bmw_connected_drive/binary_sensor.py
+++ b/homeassistant/components/bmw_connected_drive/binary_sensor.py
@@ -6,8 +6,6 @@
 
 from . import DOMAIN as BMW_DOMAIN
 
-DEPENDENCIES = ['bmw_connected_drive']
-
 _LOGGER = logging.getLogger(__name__)
 
 SENSOR_TYPES = {
diff --git a/homeassistant/components/bmw_connected_drive/device_tracker.py b/homeassistant/components/bmw_connected_drive/device_tracker.py
index 20e84e33e29bd3..229488186ae16a 100644
--- a/homeassistant/components/bmw_connected_drive/device_tracker.py
+++ b/homeassistant/components/bmw_connected_drive/device_tracker.py
@@ -5,8 +5,6 @@
 
 from . import DOMAIN as BMW_DOMAIN
 
-DEPENDENCIES = ['bmw_connected_drive']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/bmw_connected_drive/lock.py b/homeassistant/components/bmw_connected_drive/lock.py
index fe646dcd1c9c10..455e1427b05bae 100644
--- a/homeassistant/components/bmw_connected_drive/lock.py
+++ b/homeassistant/components/bmw_connected_drive/lock.py
@@ -6,8 +6,6 @@
 
 from . import DOMAIN as BMW_DOMAIN
 
-DEPENDENCIES = ['bmw_connected_drive']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/bmw_connected_drive/sensor.py b/homeassistant/components/bmw_connected_drive/sensor.py
index 03c03f01b4a148..4d8b7adde1b5bb 100644
--- a/homeassistant/components/bmw_connected_drive/sensor.py
+++ b/homeassistant/components/bmw_connected_drive/sensor.py
@@ -9,8 +9,6 @@
 
 from . import DOMAIN as BMW_DOMAIN
 
-DEPENDENCIES = ['bmw_connected_drive']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_TO_HA_METRIC = {
diff --git a/homeassistant/components/bom/camera.py b/homeassistant/components/bom/camera.py
index d3e78034015bc1..87ffd4ab791b94 100644
--- a/homeassistant/components/bom/camera.py
+++ b/homeassistant/components/bom/camera.py
@@ -5,8 +5,6 @@
 from homeassistant.const import CONF_ID, CONF_NAME
 from homeassistant.helpers import config_validation as cv
 
-REQUIREMENTS = ['bomradarloop==0.1.2']
-
 CONF_DELTA = 'delta'
 CONF_FRAMES = 'frames'
 CONF_LOCATION = 'location'
diff --git a/homeassistant/components/braviatv/media_player.py b/homeassistant/components/braviatv/media_player.py
index 45fdb63a4a9b45..6377561009d58b 100644
--- a/homeassistant/components/braviatv/media_player.py
+++ b/homeassistant/components/braviatv/media_player.py
@@ -15,8 +15,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util.json import load_json, save_json
 
-REQUIREMENTS = ['braviarc-homeassistant==0.3.7.dev0']
-
 BRAVIA_CONFIG_FILE = 'bravia.conf'
 
 CLIENTID_PREFIX = 'HomeAssistant'
diff --git a/homeassistant/components/broadlink/sensor.py b/homeassistant/components/broadlink/sensor.py
index b3ce245a979ae7..c542d8f5549e25 100644
--- a/homeassistant/components/broadlink/sensor.py
+++ b/homeassistant/components/broadlink/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['broadlink==0.9.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEVICE_DEFAULT_NAME = 'Broadlink sensor'
diff --git a/homeassistant/components/broadlink/switch.py b/homeassistant/components/broadlink/switch.py
index 8695f70786c6f2..f2f7b4a5d957f8 100644
--- a/homeassistant/components/broadlink/switch.py
+++ b/homeassistant/components/broadlink/switch.py
@@ -17,8 +17,6 @@
 from homeassistant.util import Throttle, slugify
 from homeassistant.util.dt import utcnow
 
-REQUIREMENTS = ['broadlink==0.9.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 TIME_BETWEEN_UPDATES = timedelta(seconds=5)
diff --git a/homeassistant/components/brottsplatskartan/sensor.py b/homeassistant/components/brottsplatskartan/sensor.py
index f990dd1aba1630..c36c5c0ad1c4a3 100644
--- a/homeassistant/components/brottsplatskartan/sensor.py
+++ b/homeassistant/components/brottsplatskartan/sensor.py
@@ -12,8 +12,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['brottsplatskartan==0.0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_AREA = 'area'
diff --git a/homeassistant/components/brunt/cover.py b/homeassistant/components/brunt/cover.py
index dc17cebcec2fd6..f9455ae0910934 100644
--- a/homeassistant/components/brunt/cover.py
+++ b/homeassistant/components/brunt/cover.py
@@ -13,8 +13,6 @@
 )
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['brunt==0.1.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 COVER_FEATURES = SUPPORT_OPEN | SUPPORT_CLOSE | SUPPORT_SET_POSITION
diff --git a/homeassistant/components/bt_home_hub_5/device_tracker.py b/homeassistant/components/bt_home_hub_5/device_tracker.py
index 61853c0af89f0b..65f88e05d1cc1d 100644
--- a/homeassistant/components/bt_home_hub_5/device_tracker.py
+++ b/homeassistant/components/bt_home_hub_5/device_tracker.py
@@ -8,8 +8,6 @@
                                                      DeviceScanner)
 from homeassistant.const import CONF_HOST
 
-REQUIREMENTS = ['bthomehub5-devicelist==0.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DEFAULT_IP = '192.168.1.254'
diff --git a/homeassistant/components/bt_smarthub/device_tracker.py b/homeassistant/components/bt_smarthub/device_tracker.py
index 5820feda567903..adc873f56b3965 100644
--- a/homeassistant/components/bt_smarthub/device_tracker.py
+++ b/homeassistant/components/bt_smarthub/device_tracker.py
@@ -8,8 +8,6 @@
     DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.const import CONF_HOST
 
-REQUIREMENTS = ['btsmarthub_devicelist==0.1.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DEFAULT_IP = '192.168.1.254'
diff --git a/homeassistant/components/buienradar/sensor.py b/homeassistant/components/buienradar/sensor.py
index 754873fa2c914f..f3aaa9b75378dc 100644
--- a/homeassistant/components/buienradar/sensor.py
+++ b/homeassistant/components/buienradar/sensor.py
@@ -17,8 +17,6 @@
 from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.util import dt as dt_util
 
-REQUIREMENTS = ['buienradar==0.91']
-
 _LOGGER = logging.getLogger(__name__)
 
 MEASURED_LABEL = 'Measured'
diff --git a/homeassistant/components/buienradar/weather.py b/homeassistant/components/buienradar/weather.py
index 86dcb229a78bbd..7d77bec7cca05a 100644
--- a/homeassistant/components/buienradar/weather.py
+++ b/homeassistant/components/buienradar/weather.py
@@ -13,8 +13,6 @@
 # Reuse data and API logic from the sensor implementation
 from .sensor import BrData
 
-REQUIREMENTS = ['buienradar==0.91']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_CONDITION = 'buienradar_condition'
diff --git a/homeassistant/components/caldav/calendar.py b/homeassistant/components/caldav/calendar.py
index 65cb20811b880b..446473c7f40db9 100644
--- a/homeassistant/components/caldav/calendar.py
+++ b/homeassistant/components/caldav/calendar.py
@@ -12,8 +12,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle, dt
 
-REQUIREMENTS = ['caldav==0.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DEVICE_ID = 'device_id'
diff --git a/homeassistant/components/calendar/__init__.py b/homeassistant/components/calendar/__init__.py
index aa9e3153fe5bbd..73a779816a3d1c 100644
--- a/homeassistant/components/calendar/__init__.py
+++ b/homeassistant/components/calendar/__init__.py
@@ -22,8 +22,6 @@
 
 DOMAIN = 'calendar'
 
-DEPENDENCIES = ['http']
-
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
 
 SCAN_INTERVAL = timedelta(seconds=60)
diff --git a/homeassistant/components/camera/__init__.py b/homeassistant/components/camera/__init__.py
index 2ddab537acc09e..1287de92ffd2fd 100644
--- a/homeassistant/components/camera/__init__.py
+++ b/homeassistant/components/camera/__init__.py
@@ -36,8 +36,6 @@
 from .const import DOMAIN, DATA_CAMERA_PREFS
 from .prefs import CameraPreferences
 
-DEPENDENCIES = ['http']
-
 _LOGGER = logging.getLogger(__name__)
 
 SERVICE_ENABLE_MOTION = 'enable_motion_detection'
diff --git a/homeassistant/components/canary/__init__.py b/homeassistant/components/canary/__init__.py
index e53c7e22d2d6dd..52b38f14795578 100644
--- a/homeassistant/components/canary/__init__.py
+++ b/homeassistant/components/canary/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers import discovery
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['py-canary==0.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 NOTIFICATION_ID = 'canary_notification'
diff --git a/homeassistant/components/canary/alarm_control_panel.py b/homeassistant/components/canary/alarm_control_panel.py
index faa7d819a2e91f..7402d7855324b8 100644
--- a/homeassistant/components/canary/alarm_control_panel.py
+++ b/homeassistant/components/canary/alarm_control_panel.py
@@ -8,8 +8,6 @@
 
 from . import DATA_CANARY
 
-DEPENDENCIES = ['canary']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/canary/camera.py b/homeassistant/components/canary/camera.py
index fc740a46f628d9..33e1265921f199 100644
--- a/homeassistant/components/canary/camera.py
+++ b/homeassistant/components/canary/camera.py
@@ -13,8 +13,6 @@
 
 from . import DATA_CANARY, DEFAULT_TIMEOUT
 
-DEPENDENCIES = ['canary', 'ffmpeg']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_FFMPEG_ARGUMENTS = 'ffmpeg_arguments'
diff --git a/homeassistant/components/canary/sensor.py b/homeassistant/components/canary/sensor.py
index fb3aaf78b0a487..220abc9b387259 100644
--- a/homeassistant/components/canary/sensor.py
+++ b/homeassistant/components/canary/sensor.py
@@ -6,8 +6,6 @@
 
 from . import DATA_CANARY
 
-DEPENDENCIES = ['canary']
-
 SENSOR_VALUE_PRECISION = 2
 ATTR_AIR_QUALITY = "air_quality"
 
diff --git a/homeassistant/components/cast/__init__.py b/homeassistant/components/cast/__init__.py
index 0ec3ac150d7501..1a93020c22956c 100644
--- a/homeassistant/components/cast/__init__.py
+++ b/homeassistant/components/cast/__init__.py
@@ -2,8 +2,6 @@
 from homeassistant import config_entries
 from homeassistant.helpers import config_entry_flow
 
-REQUIREMENTS = ['pychromecast==3.2.0']
-
 DOMAIN = 'cast'
 
 
diff --git a/homeassistant/components/channels/media_player.py b/homeassistant/components/channels/media_player.py
index afe29ae079f9ac..abd3281d11a73a 100644
--- a/homeassistant/components/channels/media_player.py
+++ b/homeassistant/components/channels/media_player.py
@@ -15,8 +15,6 @@
     STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pychannels==1.0.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_CHANNELS = 'channels'
diff --git a/homeassistant/components/cisco_ios/device_tracker.py b/homeassistant/components/cisco_ios/device_tracker.py
index d5a64626e89924..5eb039709890cb 100644
--- a/homeassistant/components/cisco_ios/device_tracker.py
+++ b/homeassistant/components/cisco_ios/device_tracker.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pexpect==4.6.0']
-
 PLATFORM_SCHEMA = vol.All(
     PLATFORM_SCHEMA.extend({
         vol.Required(CONF_HOST): cv.string,
diff --git a/homeassistant/components/cisco_mobility_express/device_tracker.py b/homeassistant/components/cisco_mobility_express/device_tracker.py
index a722a994350041..4af94588d3b18f 100644
--- a/homeassistant/components/cisco_mobility_express/device_tracker.py
+++ b/homeassistant/components/cisco_mobility_express/device_tracker.py
@@ -9,10 +9,6 @@
 from homeassistant.const import (
     CONF_HOST, CONF_USERNAME, CONF_PASSWORD, CONF_SSL, CONF_VERIFY_SSL)
 
-
-REQUIREMENTS = ['ciscomobilityexpress==0.1.5']
-
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_SSL = False
diff --git a/homeassistant/components/cisco_webex_teams/notify.py b/homeassistant/components/cisco_webex_teams/notify.py
index f893d4071b0e6e..22f8679f6184b0 100644
--- a/homeassistant/components/cisco_webex_teams/notify.py
+++ b/homeassistant/components/cisco_webex_teams/notify.py
@@ -8,8 +8,6 @@
 from homeassistant.const import (CONF_TOKEN)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['webexteamssdk==1.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ROOM_ID = 'room_id'
diff --git a/homeassistant/components/ciscospark/notify.py b/homeassistant/components/ciscospark/notify.py
index 2eccb233a3cdd6..320c342b1433bb 100644
--- a/homeassistant/components/ciscospark/notify.py
+++ b/homeassistant/components/ciscospark/notify.py
@@ -9,8 +9,6 @@
 from homeassistant.components.notify import (ATTR_TITLE, PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-REQUIREMENTS = ['ciscosparkapi==0.4.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ROOMID = 'roomid'
diff --git a/homeassistant/components/clementine/media_player.py b/homeassistant/components/clementine/media_player.py
index 65c6be19845faa..fc6e27be1bd61b 100644
--- a/homeassistant/components/clementine/media_player.py
+++ b/homeassistant/components/clementine/media_player.py
@@ -16,8 +16,6 @@
     STATE_PAUSED, STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-clementine-remote==1.0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Clementine Remote'
diff --git a/homeassistant/components/cloud/__init__.py b/homeassistant/components/cloud/__init__.py
index 41045ba1f91265..ee0cd0c00909a5 100644
--- a/homeassistant/components/cloud/__init__.py
+++ b/homeassistant/components/cloud/__init__.py
@@ -24,9 +24,6 @@
     CONF_USER_POOL_ID, DOMAIN, MODE_DEV, MODE_PROD)
 from .prefs import CloudPreferences
 
-REQUIREMENTS = ['hass-nabucasa==0.11']
-DEPENDENCIES = ['http']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_MODE = MODE_PROD
diff --git a/homeassistant/components/cloud/binary_sensor.py b/homeassistant/components/cloud/binary_sensor.py
index 19a6528e3218f5..3e4aaf9cc848a6 100644
--- a/homeassistant/components/cloud/binary_sensor.py
+++ b/homeassistant/components/cloud/binary_sensor.py
@@ -6,8 +6,6 @@
 
 from .const import DISPATCHER_REMOTE_UPDATE, DOMAIN
 
-DEPENDENCIES = ['cloud']
-
 
 WAIT_UNTIL_CHANGE = 3
 
diff --git a/homeassistant/components/cloudflare/__init__.py b/homeassistant/components/cloudflare/__init__.py
index 363e7c5eeb11dd..ce88f820fe372d 100644
--- a/homeassistant/components/cloudflare/__init__.py
+++ b/homeassistant/components/cloudflare/__init__.py
@@ -8,8 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['pycfdns==0.0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_RECORDS = 'records'
diff --git a/homeassistant/components/cmus/media_player.py b/homeassistant/components/cmus/media_player.py
index e5134508feaaaa..4f1dfc5053642d 100644
--- a/homeassistant/components/cmus/media_player.py
+++ b/homeassistant/components/cmus/media_player.py
@@ -14,8 +14,6 @@
     STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pycmus==0.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'cmus'
diff --git a/homeassistant/components/co2signal/sensor.py b/homeassistant/components/co2signal/sensor.py
index b9ae5e26ebef20..990521d041854d 100644
--- a/homeassistant/components/co2signal/sensor.py
+++ b/homeassistant/components/co2signal/sensor.py
@@ -11,8 +11,6 @@
 
 CONF_COUNTRY_CODE = "country_code"
 
-REQUIREMENTS = ['co2signal==0.4.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = 'Data provided by CO2signal'
diff --git a/homeassistant/components/coinbase/__init__.py b/homeassistant/components/coinbase/__init__.py
index 40d04eadb3a79e..21efd5f9b8eccb 100644
--- a/homeassistant/components/coinbase/__init__.py
+++ b/homeassistant/components/coinbase/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['coinbase==2.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'coinbase'
diff --git a/homeassistant/components/coinbase/sensor.py b/homeassistant/components/coinbase/sensor.py
index 2483d46b38a095..9470999efbb93b 100644
--- a/homeassistant/components/coinbase/sensor.py
+++ b/homeassistant/components/coinbase/sensor.py
@@ -17,7 +17,6 @@
 ATTRIBUTION = "Data provided by coinbase.com"
 
 DATA_COINBASE = 'coinbase_cache'
-DEPENDENCIES = ['coinbase']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/coinmarketcap/sensor.py b/homeassistant/components/coinmarketcap/sensor.py
index a39f11b5352a0a..4d8af5a721d1ff 100644
--- a/homeassistant/components/coinmarketcap/sensor.py
+++ b/homeassistant/components/coinmarketcap/sensor.py
@@ -11,8 +11,6 @@
     ATTR_ATTRIBUTION, CONF_DISPLAY_CURRENCY)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['coinmarketcap==5.0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_VOLUME_24H = 'volume_24h'
diff --git a/homeassistant/components/comfoconnect/__init__.py b/homeassistant/components/comfoconnect/__init__.py
index 64ebec18545903..3c50f3fb723887 100644
--- a/homeassistant/components/comfoconnect/__init__.py
+++ b/homeassistant/components/comfoconnect/__init__.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import dispatcher_send
 
-REQUIREMENTS = ['pycomfoconnect==0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'comfoconnect'
diff --git a/homeassistant/components/comfoconnect/fan.py b/homeassistant/components/comfoconnect/fan.py
index 88dcffcfd21485..56175f0bca0963 100644
--- a/homeassistant/components/comfoconnect/fan.py
+++ b/homeassistant/components/comfoconnect/fan.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['comfoconnect']
-
 SPEED_MAPPING = {
     0: SPEED_OFF,
     1: SPEED_LOW,
diff --git a/homeassistant/components/comfoconnect/sensor.py b/homeassistant/components/comfoconnect/sensor.py
index edb96b8d279d3d..db2a9393e2b481 100644
--- a/homeassistant/components/comfoconnect/sensor.py
+++ b/homeassistant/components/comfoconnect/sensor.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['comfoconnect']
-
 SENSOR_TYPES = {}
 
 
diff --git a/homeassistant/components/concord232/alarm_control_panel.py b/homeassistant/components/concord232/alarm_control_panel.py
index a209fba93edfb3..c56e7e71531298 100644
--- a/homeassistant/components/concord232/alarm_control_panel.py
+++ b/homeassistant/components/concord232/alarm_control_panel.py
@@ -12,8 +12,6 @@
     CONF_HOST, CONF_NAME, CONF_PORT, CONF_CODE, CONF_MODE,
     STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED)
 
-REQUIREMENTS = ['concord232==0.15']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_HOST = 'localhost'
diff --git a/homeassistant/components/concord232/binary_sensor.py b/homeassistant/components/concord232/binary_sensor.py
index c1a31eb9ead989..ae464da97987e1 100644
--- a/homeassistant/components/concord232/binary_sensor.py
+++ b/homeassistant/components/concord232/binary_sensor.py
@@ -10,8 +10,6 @@
 from homeassistant.const import (CONF_HOST, CONF_PORT)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['concord232==0.15']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_EXCLUDE_ZONES = 'exclude_zones'
diff --git a/homeassistant/components/config/__init__.py b/homeassistant/components/config/__init__.py
index 7807c52737091e..3752d5d37bf147 100644
--- a/homeassistant/components/config/__init__.py
+++ b/homeassistant/components/config/__init__.py
@@ -12,7 +12,6 @@
 from homeassistant.util.yaml import load_yaml, dump
 
 DOMAIN = 'config'
-DEPENDENCIES = ['http']
 SECTIONS = (
     'area_registry',
     'auth',
diff --git a/homeassistant/components/conversation/__init__.py b/homeassistant/components/conversation/__init__.py
index bb2d692f2490b3..bd577127fa0385 100644
--- a/homeassistant/components/conversation/__init__.py
+++ b/homeassistant/components/conversation/__init__.py
@@ -21,7 +21,6 @@
 
 ATTR_TEXT = 'text'
 
-DEPENDENCIES = ['http']
 DOMAIN = 'conversation'
 
 REGEX_TURN_COMMAND = re.compile(r'turn (?P<name>(?: |\w)+) (?P<command>\w+)')
diff --git a/homeassistant/components/coolmaster/climate.py b/homeassistant/components/coolmaster/climate.py
index 77bb9a6b213d29..d6402bd893cabe 100644
--- a/homeassistant/components/coolmaster/climate.py
+++ b/homeassistant/components/coolmaster/climate.py
@@ -13,8 +13,6 @@
     ATTR_TEMPERATURE, CONF_HOST, CONF_PORT, TEMP_CELSIUS, TEMP_FAHRENHEIT)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pycoolmasternet==0.0.4']
-
 SUPPORT_FLAGS = (SUPPORT_TARGET_TEMPERATURE | SUPPORT_FAN_MODE |
                  SUPPORT_OPERATION_MODE | SUPPORT_ON_OFF)
 
diff --git a/homeassistant/components/cover/__init__.py b/homeassistant/components/cover/__init__.py
index 9bb1aacfaf13ea..8609d3c9cf6402 100644
--- a/homeassistant/components/cover/__init__.py
+++ b/homeassistant/components/cover/__init__.py
@@ -22,7 +22,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'cover'
-DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=15)
 
 GROUP_NAME_ALL_COVERS = 'all covers'
diff --git a/homeassistant/components/cppm_tracker/device_tracker.py b/homeassistant/components/cppm_tracker/device_tracker.py
index 31d8122692a39e..608ce6dad6bcaa 100755
--- a/homeassistant/components/cppm_tracker/device_tracker.py
+++ b/homeassistant/components/cppm_tracker/device_tracker.py
@@ -11,8 +11,6 @@
     CONF_HOST, CONF_API_KEY
 )
 
-REQUIREMENTS = ['clearpasspy==1.0.2']
-
 SCAN_INTERVAL = timedelta(seconds=120)
 
 CLIENT_ID = 'client_id'
diff --git a/homeassistant/components/cpuspeed/sensor.py b/homeassistant/components/cpuspeed/sensor.py
index 98d22c20d153b6..ef9cb218cd79b0 100644
--- a/homeassistant/components/cpuspeed/sensor.py
+++ b/homeassistant/components/cpuspeed/sensor.py
@@ -8,8 +8,6 @@
 from homeassistant.const import CONF_NAME
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['py-cpuinfo==5.0.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_BRAND = 'Brand'
diff --git a/homeassistant/components/crimereports/sensor.py b/homeassistant/components/crimereports/sensor.py
index 139346755178e9..5e25d800247b7d 100644
--- a/homeassistant/components/crimereports/sensor.py
+++ b/homeassistant/components/crimereports/sensor.py
@@ -16,8 +16,6 @@
 from homeassistant.util.dt import now
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['crimereports==1.0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'crimereports'
diff --git a/homeassistant/components/cups/sensor.py b/homeassistant/components/cups/sensor.py
index 97f894aed86981..cf0ba5f7f8d3ee 100644
--- a/homeassistant/components/cups/sensor.py
+++ b/homeassistant/components/cups/sensor.py
@@ -10,8 +10,6 @@
 from homeassistant.const import CONF_HOST, CONF_PORT
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pycups==1.9.73']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DEVICE_URI = 'device_uri'
diff --git a/homeassistant/components/daikin/__init__.py b/homeassistant/components/daikin/__init__.py
index 8e96ccb87388a9..fc15ebea772704 100644
--- a/homeassistant/components/daikin/__init__.py
+++ b/homeassistant/components/daikin/__init__.py
@@ -17,8 +17,6 @@
 
 from . import config_flow  # noqa  pylint_disable=unused-import
 
-REQUIREMENTS = ['pydaikin==1.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'daikin'
diff --git a/homeassistant/components/danfoss_air/__init__.py b/homeassistant/components/danfoss_air/__init__.py
index f4a7b92c17cbb9..a340b94e9a4618 100644
--- a/homeassistant/components/danfoss_air/__init__.py
+++ b/homeassistant/components/danfoss_air/__init__.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pydanfossair==0.0.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 DANFOSS_AIR_PLATFORMS = ['sensor', 'binary_sensor', 'switch']
diff --git a/homeassistant/components/darksky/sensor.py b/homeassistant/components/darksky/sensor.py
index 6aee3457acb381..63c2f782d17e0e 100644
--- a/homeassistant/components/darksky/sensor.py
+++ b/homeassistant/components/darksky/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['python-forecastio==1.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Powered by Dark Sky"
diff --git a/homeassistant/components/darksky/weather.py b/homeassistant/components/darksky/weather.py
index 5b3db4312bfb10..dd945e7b01c9ba 100644
--- a/homeassistant/components/darksky/weather.py
+++ b/homeassistant/components/darksky/weather.py
@@ -16,8 +16,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 from homeassistant.util.pressure import convert as convert_pressure
-REQUIREMENTS = ['python-forecastio==1.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Powered by Dark Sky"
diff --git a/homeassistant/components/datadog/__init__.py b/homeassistant/components/datadog/__init__.py
index 3b519514d17b44..a59d828301c20f 100644
--- a/homeassistant/components/datadog/__init__.py
+++ b/homeassistant/components/datadog/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers import state as state_helper
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['datadog==0.15.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_RATE = 'rate'
diff --git a/homeassistant/components/deconz/__init__.py b/homeassistant/components/deconz/__init__.py
index 807f82821fb293..153e654f3fb322 100644
--- a/homeassistant/components/deconz/__init__.py
+++ b/homeassistant/components/deconz/__init__.py
@@ -13,8 +13,6 @@
     CONF_MASTER_GATEWAY, DEFAULT_PORT, DOMAIN, _LOGGER)
 from .gateway import DeconzGateway
 
-REQUIREMENTS = ['pydeconz==54']
-
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({
         vol.Optional(CONF_API_KEY): cv.string,
diff --git a/homeassistant/components/deconz/binary_sensor.py b/homeassistant/components/deconz/binary_sensor.py
index 70de1fd7cf44ba..fbb15abc744ade 100644
--- a/homeassistant/components/deconz/binary_sensor.py
+++ b/homeassistant/components/deconz/binary_sensor.py
@@ -8,8 +8,6 @@
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-DEPENDENCIES = ['deconz']
-
 ATTR_ORIENTATION = 'orientation'
 ATTR_TILTANGLE = 'tiltangle'
 ATTR_VIBRATIONSTRENGTH = 'vibrationstrength'
diff --git a/homeassistant/components/deconz/climate.py b/homeassistant/components/deconz/climate.py
index c4327d3c497fec..c4a021a80c223c 100644
--- a/homeassistant/components/deconz/climate.py
+++ b/homeassistant/components/deconz/climate.py
@@ -11,8 +11,6 @@
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-DEPENDENCIES = ['deconz']
-
 
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up the deCONZ climate devices.
diff --git a/homeassistant/components/deconz/cover.py b/homeassistant/components/deconz/cover.py
index 903c1160eb8226..45a1b0c67e51b7 100644
--- a/homeassistant/components/deconz/cover.py
+++ b/homeassistant/components/deconz/cover.py
@@ -9,8 +9,6 @@
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-DEPENDENCIES = ['deconz']
-
 ZIGBEE_SPEC = ['lumi.curtain']
 
 
diff --git a/homeassistant/components/deconz/light.py b/homeassistant/components/deconz/light.py
index b5a2b075f75bdf..7514162fefad44 100644
--- a/homeassistant/components/deconz/light.py
+++ b/homeassistant/components/deconz/light.py
@@ -12,8 +12,6 @@
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-DEPENDENCIES = ['deconz']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/deconz/scene.py b/homeassistant/components/deconz/scene.py
index 1ae1e079daa065..d2e7f6719e915a 100644
--- a/homeassistant/components/deconz/scene.py
+++ b/homeassistant/components/deconz/scene.py
@@ -6,8 +6,6 @@
 from .const import NEW_SCENE
 from .gateway import get_gateway_from_config_entry
 
-DEPENDENCIES = ['deconz']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/deconz/sensor.py b/homeassistant/components/deconz/sensor.py
index 7c3109e1f5961f..9f1e87db4ba821 100644
--- a/homeassistant/components/deconz/sensor.py
+++ b/homeassistant/components/deconz/sensor.py
@@ -9,8 +9,6 @@
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-DEPENDENCIES = ['deconz']
-
 ATTR_CURRENT = 'current'
 ATTR_DAYLIGHT = 'daylight'
 ATTR_EVENT_ID = 'event_id'
diff --git a/homeassistant/components/deconz/switch.py b/homeassistant/components/deconz/switch.py
index b9f959766fc2c2..c399f5da128d6f 100644
--- a/homeassistant/components/deconz/switch.py
+++ b/homeassistant/components/deconz/switch.py
@@ -7,8 +7,6 @@
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-DEPENDENCIES = ['deconz']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/decora/light.py b/homeassistant/components/decora/light.py
index fc8b2859c0712d..2f6c050b79e64a 100644
--- a/homeassistant/components/decora/light.py
+++ b/homeassistant/components/decora/light.py
@@ -12,8 +12,6 @@
     PLATFORM_SCHEMA)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['decora==0.6', 'bluepy==1.1.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_DECORA_LED = (SUPPORT_BRIGHTNESS)
diff --git a/homeassistant/components/decora_wifi/light.py b/homeassistant/components/decora_wifi/light.py
index b7be6bffb0151a..390af765b62b41 100644
--- a/homeassistant/components/decora_wifi/light.py
+++ b/homeassistant/components/decora_wifi/light.py
@@ -12,8 +12,6 @@
     EVENT_HOMEASSISTANT_STOP)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['decora_wifi==1.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 # Validation of the user's configuration
diff --git a/homeassistant/components/default_config/__init__.py b/homeassistant/components/default_config/__init__.py
index 6743893888d819..273513262d5f9b 100644
--- a/homeassistant/components/default_config/__init__.py
+++ b/homeassistant/components/default_config/__init__.py
@@ -5,26 +5,6 @@
     av = None
 
 DOMAIN = 'default_config'
-DEPENDENCIES = [
-    'automation',
-    'cloud',
-    'config',
-    'conversation',
-    'frontend',
-    'history',
-    'logbook',
-    'map',
-    'mobile_app',
-    'person',
-    'script',
-    'sun',
-    'system_health',
-    'updater',
-    'zeroconf',
-]
-# Only automatically set up the stream component when dependency installed
-if av is not None:
-    DEPENDENCIES.append('stream')
 
 
 async def async_setup(hass, config):
diff --git a/homeassistant/components/deluge/sensor.py b/homeassistant/components/deluge/sensor.py
index 32b1c16a47c783..1002ae51077849 100644
--- a/homeassistant/components/deluge/sensor.py
+++ b/homeassistant/components/deluge/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.exceptions import PlatformNotReady
 
-REQUIREMENTS = ['deluge-client==1.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 _THROTTLED_REFRESH = None
 
diff --git a/homeassistant/components/deluge/switch.py b/homeassistant/components/deluge/switch.py
index d7c60bd96e2932..d72ce9a53083b7 100644
--- a/homeassistant/components/deluge/switch.py
+++ b/homeassistant/components/deluge/switch.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import ToggleEntity
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['deluge-client==1.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Deluge Switch'
diff --git a/homeassistant/components/demo/__init__.py b/homeassistant/components/demo/__init__.py
index 354f0c0e37541a..50d1eebdcd383d 100644
--- a/homeassistant/components/demo/__init__.py
+++ b/homeassistant/components/demo/__init__.py
@@ -7,7 +7,6 @@
 import homeassistant.core as ha
 from homeassistant.const import ATTR_ENTITY_ID, CONF_PLATFORM
 
-DEPENDENCIES = ['conversation', 'zone']
 DOMAIN = 'demo'
 
 COMPONENTS_WITH_DEMO_PLATFORM = [
diff --git a/homeassistant/components/denonavr/media_player.py b/homeassistant/components/denonavr/media_player.py
index 0adafe4f472e2e..da416ce8045bc6 100644
--- a/homeassistant/components/denonavr/media_player.py
+++ b/homeassistant/components/denonavr/media_player.py
@@ -18,8 +18,6 @@
     STATE_PAUSED, STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['denonavr==0.7.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_SOUND_MODE_RAW = 'sound_mode_raw'
diff --git a/homeassistant/components/deutsche_bahn/sensor.py b/homeassistant/components/deutsche_bahn/sensor.py
index 41584b2561fb9d..9c7518eb8ef7a6 100644
--- a/homeassistant/components/deutsche_bahn/sensor.py
+++ b/homeassistant/components/deutsche_bahn/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.entity import Entity
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['schiene==0.23']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DESTINATION = 'to'
diff --git a/homeassistant/components/device_sun_light_trigger/__init__.py b/homeassistant/components/device_sun_light_trigger/__init__.py
index 00adefc6b5c31f..945f83686712b5 100644
--- a/homeassistant/components/device_sun_light_trigger/__init__.py
+++ b/homeassistant/components/device_sun_light_trigger/__init__.py
@@ -17,8 +17,6 @@
 import homeassistant.helpers.config_validation as cv
 
 DOMAIN = 'device_sun_light_trigger'
-DEPENDENCIES = ['light', 'device_tracker', 'group']
-
 CONF_DEVICE_GROUP = 'device_group'
 CONF_DISABLE_TURN_OFF = 'disable_turn_off'
 CONF_LIGHT_GROUP = 'light_group'
diff --git a/homeassistant/components/device_tracker/__init__.py b/homeassistant/components/device_tracker/__init__.py
index 42d301721dad47..60dac103a46f14 100644
--- a/homeassistant/components/device_tracker/__init__.py
+++ b/homeassistant/components/device_tracker/__init__.py
@@ -35,8 +35,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'device_tracker'
-DEPENDENCIES = ['zone', 'group']
-
 GROUP_NAME_ALL_DEVICES = 'all devices'
 ENTITY_ID_ALL_DEVICES = group.ENTITY_ID_FORMAT.format('all_devices')
 
diff --git a/homeassistant/components/dht/sensor.py b/homeassistant/components/dht/sensor.py
index 719c2525f0a985..d544bfa74e85aa 100644
--- a/homeassistant/components/dht/sensor.py
+++ b/homeassistant/components/dht/sensor.py
@@ -12,8 +12,6 @@
 from homeassistant.util import Throttle
 from homeassistant.util.temperature import celsius_to_fahrenheit
 
-REQUIREMENTS = ['Adafruit-DHT==1.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PIN = 'pin'
diff --git a/homeassistant/components/dialogflow/__init__.py b/homeassistant/components/dialogflow/__init__.py
index 1536fe3d2362ca..a6134d4b19c04d 100644
--- a/homeassistant/components/dialogflow/__init__.py
+++ b/homeassistant/components/dialogflow/__init__.py
@@ -10,7 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['webhook']
 DOMAIN = 'dialogflow'
 
 SOURCE = "Home Assistant Dialogflow"
diff --git a/homeassistant/components/digital_ocean/__init__.py b/homeassistant/components/digital_ocean/__init__.py
index 7975a6eea0d69c..9e034b2428dda2 100644
--- a/homeassistant/components/digital_ocean/__init__.py
+++ b/homeassistant/components/digital_ocean/__init__.py
@@ -8,8 +8,6 @@
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-digitalocean==1.13.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CREATED_AT = 'created_at'
diff --git a/homeassistant/components/digital_ocean/binary_sensor.py b/homeassistant/components/digital_ocean/binary_sensor.py
index d496a09161b91d..83406247a07e9a 100644
--- a/homeassistant/components/digital_ocean/binary_sensor.py
+++ b/homeassistant/components/digital_ocean/binary_sensor.py
@@ -17,8 +17,6 @@
 
 DEFAULT_NAME = 'Droplet'
 DEFAULT_DEVICE_CLASS = 'moving'
-DEPENDENCIES = ['digital_ocean']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_DROPLETS): vol.All(cv.ensure_list, [cv.string]),
 })
diff --git a/homeassistant/components/digital_ocean/switch.py b/homeassistant/components/digital_ocean/switch.py
index bc4a6a29b42064..8016ccef0ea86d 100644
--- a/homeassistant/components/digital_ocean/switch.py
+++ b/homeassistant/components/digital_ocean/switch.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['digital_ocean']
-
 DEFAULT_NAME = 'Droplet'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/digitalloggers/switch.py b/homeassistant/components/digitalloggers/switch.py
index 89973cfad0c828..4d1a87c44f90f1 100644
--- a/homeassistant/components/digitalloggers/switch.py
+++ b/homeassistant/components/digitalloggers/switch.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['dlipower==0.7.165']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CYCLETIME = 'cycletime'
diff --git a/homeassistant/components/directv/media_player.py b/homeassistant/components/directv/media_player.py
index 3a30282bdf49be..aaffd44d572413 100644
--- a/homeassistant/components/directv/media_player.py
+++ b/homeassistant/components/directv/media_player.py
@@ -15,8 +15,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['directpy==0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_MEDIA_CURRENTLY_RECORDING = 'media_currently_recording'
diff --git a/homeassistant/components/discogs/sensor.py b/homeassistant/components/discogs/sensor.py
index f8d66688b4ff65..f9f821668f9d5d 100644
--- a/homeassistant/components/discogs/sensor.py
+++ b/homeassistant/components/discogs/sensor.py
@@ -12,8 +12,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['discogs_client==2.2.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_IDENTITY = 'identity'
diff --git a/homeassistant/components/discord/notify.py b/homeassistant/components/discord/notify.py
index cb6fc8329c66b5..faf79d14e3325b 100644
--- a/homeassistant/components/discord/notify.py
+++ b/homeassistant/components/discord/notify.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['discord.py==0.16.12']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_TOKEN): cv.string
 })
diff --git a/homeassistant/components/discovery/__init__.py b/homeassistant/components/discovery/__init__.py
index 8e3a350c5ca1b0..7490b53092642b 100644
--- a/homeassistant/components/discovery/__init__.py
+++ b/homeassistant/components/discovery/__init__.py
@@ -20,8 +20,6 @@
 from homeassistant.helpers.discovery import async_load_platform, async_discover
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['netdisco==2.6.0']
-
 DOMAIN = 'discovery'
 
 SCAN_INTERVAL = timedelta(seconds=300)
diff --git a/homeassistant/components/dlib_face_detect/image_processing.py b/homeassistant/components/dlib_face_detect/image_processing.py
index 49fbfadff7e779..0bc657a615d7ff 100644
--- a/homeassistant/components/dlib_face_detect/image_processing.py
+++ b/homeassistant/components/dlib_face_detect/image_processing.py
@@ -8,8 +8,6 @@
 from homeassistant.components.image_processing import (
     ImageProcessingFaceEntity, CONF_SOURCE, CONF_ENTITY_ID, CONF_NAME)
 
-REQUIREMENTS = ['face_recognition==1.2.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_LOCATION = 'location'
diff --git a/homeassistant/components/dlib_face_identify/image_processing.py b/homeassistant/components/dlib_face_identify/image_processing.py
index a3b91235125e43..569b1ecece2bcf 100644
--- a/homeassistant/components/dlib_face_identify/image_processing.py
+++ b/homeassistant/components/dlib_face_identify/image_processing.py
@@ -10,8 +10,6 @@
     CONF_NAME)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['face_recognition==1.2.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_NAME = 'name'
diff --git a/homeassistant/components/dlink/switch.py b/homeassistant/components/dlink/switch.py
index 812fd3882b311b..7164bb2310a914 100644
--- a/homeassistant/components/dlink/switch.py
+++ b/homeassistant/components/dlink/switch.py
@@ -12,8 +12,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import dt as dt_util
 
-REQUIREMENTS = ['pyW215==0.6.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_TOTAL_CONSUMPTION = 'total_consumption'
diff --git a/homeassistant/components/dlna_dmr/media_player.py b/homeassistant/components/dlna_dmr/media_player.py
index 54c19f70ef324d..6f29bd65d56772 100644
--- a/homeassistant/components/dlna_dmr/media_player.py
+++ b/homeassistant/components/dlna_dmr/media_player.py
@@ -27,8 +27,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import get_local_ip
 
-REQUIREMENTS = ['async-upnp-client==0.14.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 DLNA_DMR_DATA = 'dlna_dmr'
diff --git a/homeassistant/components/dnsip/sensor.py b/homeassistant/components/dnsip/sensor.py
index 13c9be7bb14fb5..976abb1401b57f 100644
--- a/homeassistant/components/dnsip/sensor.py
+++ b/homeassistant/components/dnsip/sensor.py
@@ -8,8 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['aiodns==1.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_NAME = 'name'
diff --git a/homeassistant/components/dominos/__init__.py b/homeassistant/components/dominos/__init__.py
index 1c8966f3b4b5d9..3c5cb3ed6ecc56 100644
--- a/homeassistant/components/dominos/__init__.py
+++ b/homeassistant/components/dominos/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity_component import EntityComponent
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pizzapi==0.0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 # The domain of your component. Should be equal to the name of your component.
@@ -34,8 +32,6 @@
 MIN_TIME_BETWEEN_UPDATES = timedelta(minutes=10)
 MIN_TIME_BETWEEN_STORE_UPDATES = timedelta(minutes=3330)
 
-DEPENDENCIES = ['http']
-
 _ORDERS_SCHEMA = vol.Schema({
     vol.Required(ATTR_ORDER_NAME): cv.string,
     vol.Required(ATTR_ORDER_CODES): vol.All(cv.ensure_list, [cv.string]),
diff --git a/homeassistant/components/doorbird/__init__.py b/homeassistant/components/doorbird/__init__.py
index 25a2c5caff91d9..477d96770bc523 100644
--- a/homeassistant/components/doorbird/__init__.py
+++ b/homeassistant/components/doorbird/__init__.py
@@ -11,8 +11,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import dt as dt_util, slugify
 
-REQUIREMENTS = ['doorbirdpy==2.0.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'doorbird'
diff --git a/homeassistant/components/doorbird/camera.py b/homeassistant/components/doorbird/camera.py
index a93b0fbf1948cb..9a20a91c75855d 100644
--- a/homeassistant/components/doorbird/camera.py
+++ b/homeassistant/components/doorbird/camera.py
@@ -11,8 +11,6 @@
 
 from . import DOMAIN as DOORBIRD_DOMAIN
 
-DEPENDENCIES = ['doorbird']
-
 _CAMERA_LAST_VISITOR = "{} Last Ring"
 _CAMERA_LAST_MOTION = "{} Last Motion"
 _CAMERA_LIVE = "{} Live"
diff --git a/homeassistant/components/doorbird/switch.py b/homeassistant/components/doorbird/switch.py
index ba6f96660d1b2d..f3b1f5f059e653 100644
--- a/homeassistant/components/doorbird/switch.py
+++ b/homeassistant/components/doorbird/switch.py
@@ -6,8 +6,6 @@
 
 from . import DOMAIN as DOORBIRD_DOMAIN
 
-DEPENDENCIES = ['doorbird']
-
 _LOGGER = logging.getLogger(__name__)
 
 IR_RELAY = '__ir_light__'
diff --git a/homeassistant/components/dovado/__init__.py b/homeassistant/components/dovado/__init__.py
index df2eed3011a873..2a240c2a79ec79 100644
--- a/homeassistant/components/dovado/__init__.py
+++ b/homeassistant/components/dovado/__init__.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['dovado==0.4.1']
-
 DOMAIN = 'dovado'
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/dovado/notify.py b/homeassistant/components/dovado/notify.py
index 59827529ed3ad5..f9d9e5574a103c 100644
--- a/homeassistant/components/dovado/notify.py
+++ b/homeassistant/components/dovado/notify.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['dovado']
-
 
 def get_service(hass, config, discovery_info=None):
     """Get the Dovado Router SMS notification service."""
diff --git a/homeassistant/components/dovado/sensor.py b/homeassistant/components/dovado/sensor.py
index 56c4ee03a3ada9..7a825118fc6b54 100644
--- a/homeassistant/components/dovado/sensor.py
+++ b/homeassistant/components/dovado/sensor.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['dovado']
-
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=30)
 
 SENSOR_UPLOAD = 'upload'
diff --git a/homeassistant/components/dsmr/sensor.py b/homeassistant/components/dsmr/sensor.py
index 74f6cb37fc2ebc..d7acc5c28bf897 100644
--- a/homeassistant/components/dsmr/sensor.py
+++ b/homeassistant/components/dsmr/sensor.py
@@ -15,8 +15,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['dsmr_parser==0.12']
-
 CONF_DSMR_VERSION = 'dsmr_version'
 CONF_RECONNECT_INTERVAL = 'reconnect_interval'
 CONF_PRECISION = 'precision'
diff --git a/homeassistant/components/duke_energy/sensor.py b/homeassistant/components/duke_energy/sensor.py
index 9aada34841880a..e364e35048b6ee 100644
--- a/homeassistant/components/duke_energy/sensor.py
+++ b/homeassistant/components/duke_energy/sensor.py
@@ -8,8 +8,6 @@
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pydukeenergy==0.0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/dunehd/media_player.py b/homeassistant/components/dunehd/media_player.py
index 70d96424ced97e..a5698c74654382 100644
--- a/homeassistant/components/dunehd/media_player.py
+++ b/homeassistant/components/dunehd/media_player.py
@@ -11,8 +11,6 @@
     CONF_HOST, CONF_NAME, STATE_OFF, STATE_ON, STATE_PAUSED, STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pdunehd==1.3']
-
 DEFAULT_NAME = 'DuneHD'
 
 CONF_SOURCES = 'sources'
diff --git a/homeassistant/components/dweet/__init__.py b/homeassistant/components/dweet/__init__.py
index f8e5b1811632e4..148eeeec9a42df 100644
--- a/homeassistant/components/dweet/__init__.py
+++ b/homeassistant/components/dweet/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers import state as state_helper
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['dweepy==0.3.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'dweet'
diff --git a/homeassistant/components/dweet/sensor.py b/homeassistant/components/dweet/sensor.py
index d1a64201e6dc48..55f3c5341a3301 100644
--- a/homeassistant/components/dweet/sensor.py
+++ b/homeassistant/components/dweet/sensor.py
@@ -11,8 +11,6 @@
     CONF_NAME, CONF_VALUE_TEMPLATE, CONF_UNIT_OF_MEASUREMENT, CONF_DEVICE)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['dweepy==0.3.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Dweet.io Sensor'
diff --git a/homeassistant/components/dyson/__init__.py b/homeassistant/components/dyson/__init__.py
index eccf8aac364c04..a857d6657fd422 100644
--- a/homeassistant/components/dyson/__init__.py
+++ b/homeassistant/components/dyson/__init__.py
@@ -8,8 +8,6 @@
     CONF_DEVICES, CONF_PASSWORD, CONF_TIMEOUT, CONF_USERNAME)
 from homeassistant.helpers import discovery
 
-REQUIREMENTS = ['libpurecool==0.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_LANGUAGE = 'language'
diff --git a/homeassistant/components/dyson/fan.py b/homeassistant/components/dyson/fan.py
index 0140378968b60b..03a55f8abbea80 100644
--- a/homeassistant/components/dyson/fan.py
+++ b/homeassistant/components/dyson/fan.py
@@ -27,7 +27,6 @@
 ATTR_DYSON_SPEED = 'dyson_speed'
 ATTR_DYSON_SPEED_LIST = 'dyson_speed_list'
 
-DEPENDENCIES = ['dyson']
 DYSON_DOMAIN = 'dyson'
 DYSON_FAN_DEVICES = 'dyson_fan_devices'
 
diff --git a/homeassistant/components/dyson/sensor.py b/homeassistant/components/dyson/sensor.py
index 2c7a71f5724847..56c924d1a54e75 100644
--- a/homeassistant/components/dyson/sensor.py
+++ b/homeassistant/components/dyson/sensor.py
@@ -6,8 +6,6 @@
 
 from . import DYSON_DEVICES
 
-DEPENDENCIES = ['dyson']
-
 SENSOR_UNITS = {
     'air_quality': None,
     'dust': None,
diff --git a/homeassistant/components/dyson/vacuum.py b/homeassistant/components/dyson/vacuum.py
index f1822b4043b461..0bb2368f690372 100644
--- a/homeassistant/components/dyson/vacuum.py
+++ b/homeassistant/components/dyson/vacuum.py
@@ -15,8 +15,6 @@
 ATTR_FULL_CLEAN_TYPE = 'full_clean_type'
 ATTR_POSITION = 'position'
 
-DEPENDENCIES = ['dyson']
-
 DYSON_360_EYE_DEVICES = "dyson_360_eye_devices"
 
 SUPPORT_DYSON = SUPPORT_TURN_ON | SUPPORT_TURN_OFF | SUPPORT_PAUSE | \
diff --git a/homeassistant/components/ebox/sensor.py b/homeassistant/components/ebox/sensor.py
index 24458e444dc7a9..aaf3384d55ff38 100644
--- a/homeassistant/components/ebox/sensor.py
+++ b/homeassistant/components/ebox/sensor.py
@@ -21,8 +21,6 @@
 from homeassistant.exceptions import PlatformNotReady
 
 
-REQUIREMENTS = ['pyebox==1.1.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 GIGABITS = 'Gb'  # type: str
diff --git a/homeassistant/components/ebusd/__init__.py b/homeassistant/components/ebusd/__init__.py
index bc1b3aa9595f9b..15ff523f4fbf90 100644
--- a/homeassistant/components/ebusd/__init__.py
+++ b/homeassistant/components/ebusd/__init__.py
@@ -13,8 +13,6 @@
 
 from .const import (DOMAIN, SENSOR_TYPES)
 
-REQUIREMENTS = ['ebusdpy==0.0.16']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'ebusd'
diff --git a/homeassistant/components/ebusd/sensor.py b/homeassistant/components/ebusd/sensor.py
index 942ba107509a94..f73bb09b509696 100644
--- a/homeassistant/components/ebusd/sensor.py
+++ b/homeassistant/components/ebusd/sensor.py
@@ -6,8 +6,6 @@
 
 from .const import DOMAIN
 
-DEPENDENCIES = ['ebusd']
-
 TIME_FRAME1_BEGIN = 'time_frame1_begin'
 TIME_FRAME1_END = 'time_frame1_end'
 TIME_FRAME2_BEGIN = 'time_frame2_begin'
diff --git a/homeassistant/components/ecoal_boiler/__init__.py b/homeassistant/components/ecoal_boiler/__init__.py
index 6ab9fc3181cb9c..796324d9337dbe 100644
--- a/homeassistant/components/ecoal_boiler/__init__.py
+++ b/homeassistant/components/ecoal_boiler/__init__.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 
-REQUIREMENTS = ['ecoaliface==0.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = "ecoal_boiler"
diff --git a/homeassistant/components/ecoal_boiler/sensor.py b/homeassistant/components/ecoal_boiler/sensor.py
index ef8b39842d9a0f..f1998dd5b2e3d0 100644
--- a/homeassistant/components/ecoal_boiler/sensor.py
+++ b/homeassistant/components/ecoal_boiler/sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['ecoal_boiler']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the ecoal sensors."""
diff --git a/homeassistant/components/ecoal_boiler/switch.py b/homeassistant/components/ecoal_boiler/switch.py
index db8759a032acc9..9f286e625a5206 100644
--- a/homeassistant/components/ecoal_boiler/switch.py
+++ b/homeassistant/components/ecoal_boiler/switch.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['ecoal_boiler']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up switches based on ecoal interface."""
diff --git a/homeassistant/components/ecobee/__init__.py b/homeassistant/components/ecobee/__init__.py
index 167132a5f41f16..5f9ae6a919da14 100644
--- a/homeassistant/components/ecobee/__init__.py
+++ b/homeassistant/components/ecobee/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.util import Throttle
 from homeassistant.util.json import save_json
 
-REQUIREMENTS = ['python-ecobee-api==0.0.18']
-
 _CONFIGURING = {}
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ecobee/binary_sensor.py b/homeassistant/components/ecobee/binary_sensor.py
index ca8e551bf5e6f2..0989b9ded976c9 100644
--- a/homeassistant/components/ecobee/binary_sensor.py
+++ b/homeassistant/components/ecobee/binary_sensor.py
@@ -2,8 +2,6 @@
 from homeassistant.components import ecobee
 from homeassistant.components.binary_sensor import BinarySensorDevice
 
-DEPENDENCIES = ['ecobee']
-
 ECOBEE_CONFIG_FILE = 'ecobee.conf'
 
 
diff --git a/homeassistant/components/ecobee/climate.py b/homeassistant/components/ecobee/climate.py
index 44a3800afa958f..3fe1646ee02b75 100644
--- a/homeassistant/components/ecobee/climate.py
+++ b/homeassistant/components/ecobee/climate.py
@@ -27,8 +27,6 @@
 VACATION_HOLD = 'vacation'
 AWAY_MODE = 'awayMode'
 
-DEPENDENCIES = ['ecobee']
-
 SERVICE_SET_FAN_MIN_ON_TIME = 'ecobee_set_fan_min_on_time'
 SERVICE_RESUME_PROGRAM = 'ecobee_resume_program'
 
diff --git a/homeassistant/components/ecobee/notify.py b/homeassistant/components/ecobee/notify.py
index 9824d20b85e98e..d6e4e8f0c6320c 100644
--- a/homeassistant/components/ecobee/notify.py
+++ b/homeassistant/components/ecobee/notify.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['ecobee']
-
 CONF_INDEX = 'index'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/ecobee/sensor.py b/homeassistant/components/ecobee/sensor.py
index 1f9fd5cbde8548..436903a645f35c 100644
--- a/homeassistant/components/ecobee/sensor.py
+++ b/homeassistant/components/ecobee/sensor.py
@@ -4,8 +4,6 @@
     DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_TEMPERATURE, TEMP_FAHRENHEIT)
 from homeassistant.helpers.entity import Entity
 
-DEPENDENCIES = ['ecobee']
-
 ECOBEE_CONFIG_FILE = 'ecobee.conf'
 
 SENSOR_TYPES = {
diff --git a/homeassistant/components/ecobee/weather.py b/homeassistant/components/ecobee/weather.py
index 2ba5f362b7d829..f5058434f387bb 100644
--- a/homeassistant/components/ecobee/weather.py
+++ b/homeassistant/components/ecobee/weather.py
@@ -7,8 +7,6 @@
     ATTR_FORECAST_TIME, ATTR_FORECAST_WIND_SPEED, WeatherEntity)
 from homeassistant.const import TEMP_FAHRENHEIT
 
-DEPENDENCIES = ['ecobee']
-
 ATTR_FORECAST_TEMP_HIGH = 'temphigh'
 ATTR_FORECAST_PRESSURE = 'pressure'
 ATTR_FORECAST_VISIBILITY = 'visibility'
diff --git a/homeassistant/components/econet/water_heater.py b/homeassistant/components/econet/water_heater.py
index 90176842bf1175..4c47e24d705bbf 100644
--- a/homeassistant/components/econet/water_heater.py
+++ b/homeassistant/components/econet/water_heater.py
@@ -13,8 +13,6 @@
     TEMP_FAHRENHEIT)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyeconet==0.0.10']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_VACATION_START = 'next_vacation_start_date'
diff --git a/homeassistant/components/ecovacs/__init__.py b/homeassistant/components/ecovacs/__init__.py
index 124cae3ca47191..da87af722a60a8 100644
--- a/homeassistant/components/ecovacs/__init__.py
+++ b/homeassistant/components/ecovacs/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['sucks==0.9.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = "ecovacs"
diff --git a/homeassistant/components/ecovacs/vacuum.py b/homeassistant/components/ecovacs/vacuum.py
index b9fe94f2bed0cb..ee374871d31804 100644
--- a/homeassistant/components/ecovacs/vacuum.py
+++ b/homeassistant/components/ecovacs/vacuum.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['ecovacs']
-
 SUPPORT_ECOVACS = (
     SUPPORT_BATTERY | SUPPORT_RETURN_HOME | SUPPORT_CLEAN_SPOT |
     SUPPORT_STOP | SUPPORT_TURN_OFF | SUPPORT_TURN_ON | SUPPORT_LOCATE |
diff --git a/homeassistant/components/eddystone_temperature/sensor.py b/homeassistant/components/eddystone_temperature/sensor.py
index ae3d498d30c0d9..aad279934e585f 100644
--- a/homeassistant/components/eddystone_temperature/sensor.py
+++ b/homeassistant/components/eddystone_temperature/sensor.py
@@ -18,8 +18,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['beacontools[scan]==1.2.3', 'construct==2.9.45']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_BEACONS = 'beacons'
diff --git a/homeassistant/components/edimax/switch.py b/homeassistant/components/edimax/switch.py
index 338e6ac932cc4b..535ae65800fb1a 100644
--- a/homeassistant/components/edimax/switch.py
+++ b/homeassistant/components/edimax/switch.py
@@ -8,8 +8,6 @@
     CONF_HOST, CONF_NAME, CONF_PASSWORD, CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyedimax==0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Edimax Smart Plug'
diff --git a/homeassistant/components/edp_redy/__init__.py b/homeassistant/components/edp_redy/__init__.py
index 9b8bfaa437a12d..af01206419468a 100644
--- a/homeassistant/components/edp_redy/__init__.py
+++ b/homeassistant/components/edp_redy/__init__.py
@@ -20,8 +20,6 @@
 DATA_UPDATE_TOPIC = '{0}_data_update'.format(DOMAIN)
 UPDATE_INTERVAL = 60
 
-REQUIREMENTS = ['edp_redy==0.0.3']
-
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({
         vol.Required(CONF_USERNAME): cv.string,
diff --git a/homeassistant/components/edp_redy/sensor.py b/homeassistant/components/edp_redy/sensor.py
index b8f9c031c298c9..cf9766ede66d03 100644
--- a/homeassistant/components/edp_redy/sensor.py
+++ b/homeassistant/components/edp_redy/sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['edp_redy']
-
 # Load power in watts (W)
 ATTR_ACTIVE_POWER = 'active_power'
 
diff --git a/homeassistant/components/edp_redy/switch.py b/homeassistant/components/edp_redy/switch.py
index 0c92f80ccf6366..3f6dfe6b82d498 100644
--- a/homeassistant/components/edp_redy/switch.py
+++ b/homeassistant/components/edp_redy/switch.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['edp_redy']
-
 # Load power in watts (W)
 ATTR_ACTIVE_POWER = 'active_power'
 
diff --git a/homeassistant/components/ee_brightbox/device_tracker.py b/homeassistant/components/ee_brightbox/device_tracker.py
index 46e4a3c3c24307..6af5065ed2e691 100644
--- a/homeassistant/components/ee_brightbox/device_tracker.py
+++ b/homeassistant/components/ee_brightbox/device_tracker.py
@@ -8,8 +8,6 @@
 from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['eebrightbox==0.0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_VERSION = 'version'
diff --git a/homeassistant/components/egardia/__init__.py b/homeassistant/components/egardia/__init__.py
index fe613824c9512d..cf0bb20f0fcec5 100644
--- a/homeassistant/components/egardia/__init__.py
+++ b/homeassistant/components/egardia/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pythonegardia==1.0.39']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DISCOVER_DEVICES = 'egardia_sensor'
diff --git a/homeassistant/components/egardia/alarm_control_panel.py b/homeassistant/components/egardia/alarm_control_panel.py
index 7fc60d5fb5db6e..ab48181f9ede14 100644
--- a/homeassistant/components/egardia/alarm_control_panel.py
+++ b/homeassistant/components/egardia/alarm_control_panel.py
@@ -13,8 +13,6 @@
     CONF_REPORT_SERVER_PORT, EGARDIA_DEVICE, EGARDIA_SERVER,
     REPORT_SERVER_CODES_IGNORE)
 
-DEPENDENCIES = ['egardia']
-
 _LOGGER = logging.getLogger(__name__)
 
 STATES = {
diff --git a/homeassistant/components/egardia/binary_sensor.py b/homeassistant/components/egardia/binary_sensor.py
index d11894ae675666..965b2dd1d5509e 100644
--- a/homeassistant/components/egardia/binary_sensor.py
+++ b/homeassistant/components/egardia/binary_sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['egardia']
-
 EGARDIA_TYPE_TO_DEVICE_CLASS = {
     'IR Sensor': 'motion',
     'Door Contact': 'opening',
diff --git a/homeassistant/components/eight_sleep/__init__.py b/homeassistant/components/eight_sleep/__init__.py
index ca6c8a5a5c6070..d74218796a3168 100644
--- a/homeassistant/components/eight_sleep/__init__.py
+++ b/homeassistant/components/eight_sleep/__init__.py
@@ -16,8 +16,6 @@
 from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.util.dt import utcnow
 
-REQUIREMENTS = ['pyeight==0.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PARTNER = 'partner'
diff --git a/homeassistant/components/eight_sleep/binary_sensor.py b/homeassistant/components/eight_sleep/binary_sensor.py
index a3ca27b570de0c..b3842106723063 100644
--- a/homeassistant/components/eight_sleep/binary_sensor.py
+++ b/homeassistant/components/eight_sleep/binary_sensor.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['eight_sleep']
-
 
 async def async_setup_platform(hass, config, async_add_entities,
                                discovery_info=None):
diff --git a/homeassistant/components/eight_sleep/sensor.py b/homeassistant/components/eight_sleep/sensor.py
index a1ad93ec54a3f3..b7b0f5881552bf 100644
--- a/homeassistant/components/eight_sleep/sensor.py
+++ b/homeassistant/components/eight_sleep/sensor.py
@@ -5,8 +5,6 @@
     CONF_SENSORS, DATA_EIGHT, NAME_MAP, EightSleepHeatEntity,
     EightSleepUserEntity)
 
-DEPENDENCIES = ['eight_sleep']
-
 ATTR_ROOM_TEMP = 'Room Temperature'
 ATTR_AVG_ROOM_TEMP = 'Average Room Temperature'
 ATTR_BED_TEMP = 'Bed Temperature'
diff --git a/homeassistant/components/eliqonline/sensor.py b/homeassistant/components/eliqonline/sensor.py
index 198ca327997808..12752b8db9e001 100644
--- a/homeassistant/components/eliqonline/sensor.py
+++ b/homeassistant/components/eliqonline/sensor.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-REQUIREMENTS = ['eliqonline==1.2.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CHANNEL_ID = 'channel_id'
diff --git a/homeassistant/components/elkm1/__init__.py b/homeassistant/components/elkm1/__init__.py
index a0c08bf54299f5..564f0e74c750fc 100644
--- a/homeassistant/components/elkm1/__init__.py
+++ b/homeassistant/components/elkm1/__init__.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.typing import ConfigType  # noqa
 
-REQUIREMENTS = ['elkm1-lib==0.7.13']
-
 DOMAIN = 'elkm1'
 
 CONF_AREA = 'area'
diff --git a/homeassistant/components/elkm1/alarm_control_panel.py b/homeassistant/components/elkm1/alarm_control_panel.py
index e9155dd17b5bf7..b885913a0df047 100644
--- a/homeassistant/components/elkm1/alarm_control_panel.py
+++ b/homeassistant/components/elkm1/alarm_control_panel.py
@@ -12,8 +12,6 @@
 
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-DEPENDENCIES = [ELK_DOMAIN]
-
 SIGNAL_ARM_ENTITY = 'elkm1_arm'
 SIGNAL_DISPLAY_MESSAGE = 'elkm1_display_message'
 
diff --git a/homeassistant/components/elkm1/climate.py b/homeassistant/components/elkm1/climate.py
index 93e4aa66b23494..23c1831286310c 100644
--- a/homeassistant/components/elkm1/climate.py
+++ b/homeassistant/components/elkm1/climate.py
@@ -9,8 +9,6 @@
 
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-DEPENDENCIES = [ELK_DOMAIN]
-
 
 async def async_setup_platform(hass, config, async_add_entities,
                                discovery_info=None):
diff --git a/homeassistant/components/elkm1/light.py b/homeassistant/components/elkm1/light.py
index fe84ab3f251895..ee6fe09a7a23fc 100644
--- a/homeassistant/components/elkm1/light.py
+++ b/homeassistant/components/elkm1/light.py
@@ -4,8 +4,6 @@
 
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-DEPENDENCIES = [ELK_DOMAIN]
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/elkm1/scene.py b/homeassistant/components/elkm1/scene.py
index 1d08f4cf96d5f1..aaae8bb0a5cf45 100644
--- a/homeassistant/components/elkm1/scene.py
+++ b/homeassistant/components/elkm1/scene.py
@@ -3,8 +3,6 @@
 
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-DEPENDENCIES = [ELK_DOMAIN]
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/elkm1/sensor.py b/homeassistant/components/elkm1/sensor.py
index da27a3ac4b105d..0e367265605108 100644
--- a/homeassistant/components/elkm1/sensor.py
+++ b/homeassistant/components/elkm1/sensor.py
@@ -1,8 +1,6 @@
 """Support for control of ElkM1 sensors."""
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-DEPENDENCIES = [ELK_DOMAIN]
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/elkm1/switch.py b/homeassistant/components/elkm1/switch.py
index 740a296586502f..df29491435e2c4 100644
--- a/homeassistant/components/elkm1/switch.py
+++ b/homeassistant/components/elkm1/switch.py
@@ -3,8 +3,6 @@
 
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-DEPENDENCIES = [ELK_DOMAIN]
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/emby/media_player.py b/homeassistant/components/emby/media_player.py
index 8a94664f352cbe..fa1c096707be4b 100644
--- a/homeassistant/components/emby/media_player.py
+++ b/homeassistant/components/emby/media_player.py
@@ -17,8 +17,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['pyemby==1.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_AUTO_HIDE = 'auto_hide'
diff --git a/homeassistant/components/emulated_hue/__init__.py b/homeassistant/components/emulated_hue/__init__.py
index c8ed263a2dc208..2ef0aaca134523 100644
--- a/homeassistant/components/emulated_hue/__init__.py
+++ b/homeassistant/components/emulated_hue/__init__.py
@@ -8,7 +8,6 @@
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP,
 )
-from homeassistant.components.http import REQUIREMENTS  # NOQA
 from homeassistant.exceptions import HomeAssistantError
 from homeassistant.helpers.deprecation import get_deprecated
 import homeassistant.helpers.config_validation as cv
diff --git a/homeassistant/components/emulated_roku/__init__.py b/homeassistant/components/emulated_roku/__init__.py
index ef87e14ec434bf..72d4dff72db1f0 100644
--- a/homeassistant/components/emulated_roku/__init__.py
+++ b/homeassistant/components/emulated_roku/__init__.py
@@ -11,8 +11,6 @@
     CONF_ADVERTISE_IP, CONF_ADVERTISE_PORT, CONF_HOST_IP, CONF_LISTEN_PORT,
     CONF_SERVERS, CONF_UPNP_BIND_MULTICAST, DOMAIN)
 
-REQUIREMENTS = ['emulated_roku==0.1.8']
-
 SERVER_CONFIG_SCHEMA = vol.Schema({
     vol.Required(CONF_NAME): cv.string,
     vol.Required(CONF_LISTEN_PORT): cv.port,
diff --git a/homeassistant/components/enigma2/media_player.py b/homeassistant/components/enigma2/media_player.py
index 11c3e0fe3ceab4..4662c7076376d0 100644
--- a/homeassistant/components/enigma2/media_player.py
+++ b/homeassistant/components/enigma2/media_player.py
@@ -14,8 +14,6 @@
     STATE_OFF, STATE_ON, STATE_PLAYING, CONF_PORT)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['openwebifpy==3.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_MEDIA_CURRENTLY_RECORDING = 'media_currently_recording'
diff --git a/homeassistant/components/enocean/__init__.py b/homeassistant/components/enocean/__init__.py
index 8b3c27025cd26e..2dcf6a3a0ac514 100644
--- a/homeassistant/components/enocean/__init__.py
+++ b/homeassistant/components/enocean/__init__.py
@@ -6,8 +6,6 @@
 from homeassistant.const import CONF_DEVICE
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['enocean==0.40']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'enocean'
diff --git a/homeassistant/components/enocean/binary_sensor.py b/homeassistant/components/enocean/binary_sensor.py
index 1fde8c79e401dd..649bec024e3db3 100644
--- a/homeassistant/components/enocean/binary_sensor.py
+++ b/homeassistant/components/enocean/binary_sensor.py
@@ -12,7 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['enocean']
 DEFAULT_NAME = 'EnOcean binary sensor'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/enocean/light.py b/homeassistant/components/enocean/light.py
index f574f89f951f77..9ec3f4ab27bd33 100644
--- a/homeassistant/components/enocean/light.py
+++ b/homeassistant/components/enocean/light.py
@@ -15,8 +15,6 @@
 CONF_SENDER_ID = 'sender_id'
 
 DEFAULT_NAME = 'EnOcean Light'
-DEPENDENCIES = ['enocean']
-
 SUPPORT_ENOCEAN = SUPPORT_BRIGHTNESS
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/enocean/sensor.py b/homeassistant/components/enocean/sensor.py
index 8d79de2c50d700..530738e1f88a7c 100644
--- a/homeassistant/components/enocean/sensor.py
+++ b/homeassistant/components/enocean/sensor.py
@@ -12,8 +12,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'EnOcean sensor'
-DEPENDENCIES = ['enocean']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ID): vol.All(cv.ensure_list, [vol.Coerce(int)]),
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
diff --git a/homeassistant/components/enocean/switch.py b/homeassistant/components/enocean/switch.py
index 4dfbafd36b16f6..f0b132c9d1c2a8 100644
--- a/homeassistant/components/enocean/switch.py
+++ b/homeassistant/components/enocean/switch.py
@@ -12,7 +12,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'EnOcean Switch'
-DEPENDENCIES = ['enocean']
 CONF_CHANNEL = 'channel'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/enphase_envoy/sensor.py b/homeassistant/components/enphase_envoy/sensor.py
index 2b62732dc9106f..7077e12d7500a1 100644
--- a/homeassistant/components/enphase_envoy/sensor.py
+++ b/homeassistant/components/enphase_envoy/sensor.py
@@ -10,7 +10,6 @@
     CONF_IP_ADDRESS, CONF_MONITORED_CONDITIONS, POWER_WATT)
 
 
-REQUIREMENTS = ['envoy_reader==0.3']
 _LOGGER = logging.getLogger(__name__)
 
 SENSORS = {
diff --git a/homeassistant/components/entur_public_transport/sensor.py b/homeassistant/components/entur_public_transport/sensor.py
index b2e228676902f3..61b183b9408da9 100644
--- a/homeassistant/components/entur_public_transport/sensor.py
+++ b/homeassistant/components/entur_public_transport/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.util import Throttle
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['enturclient==0.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 API_CLIENT_NAME = 'homeassistant-homeassistant'
diff --git a/homeassistant/components/envirophat/sensor.py b/homeassistant/components/envirophat/sensor.py
index 16cb79406a9b9d..6d792df24217c5 100644
--- a/homeassistant/components/envirophat/sensor.py
+++ b/homeassistant/components/envirophat/sensor.py
@@ -11,9 +11,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['envirophat==0.0.6',
-                'smbus-cffi==0.5.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'envirophat'
diff --git a/homeassistant/components/envisalink/__init__.py b/homeassistant/components/envisalink/__init__.py
index c46a26c6f857f3..d7a015e8e45710 100644
--- a/homeassistant/components/envisalink/__init__.py
+++ b/homeassistant/components/envisalink/__init__.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 
-REQUIREMENTS = ['pyenvisalink==3.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'envisalink'
diff --git a/homeassistant/components/envisalink/alarm_control_panel.py b/homeassistant/components/envisalink/alarm_control_panel.py
index 44874c6d5e8445..91a59d8f842c56 100644
--- a/homeassistant/components/envisalink/alarm_control_panel.py
+++ b/homeassistant/components/envisalink/alarm_control_panel.py
@@ -18,8 +18,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['envisalink']
-
 SERVICE_ALARM_KEYPRESS = 'envisalink_alarm_keypress'
 ATTR_KEYPRESS = 'keypress'
 ALARM_KEYPRESS_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/envisalink/binary_sensor.py b/homeassistant/components/envisalink/binary_sensor.py
index 267bba8cd288ee..bf47749d22862f 100644
--- a/homeassistant/components/envisalink/binary_sensor.py
+++ b/homeassistant/components/envisalink/binary_sensor.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['envisalink']
-
 
 async def async_setup_platform(hass, config, async_add_entities,
                                discovery_info=None):
diff --git a/homeassistant/components/envisalink/sensor.py b/homeassistant/components/envisalink/sensor.py
index 67a601b02a2ff5..2652a7e2137fb2 100644
--- a/homeassistant/components/envisalink/sensor.py
+++ b/homeassistant/components/envisalink/sensor.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['envisalink']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/ephember/climate.py b/homeassistant/components/ephember/climate.py
index 3052dd911ee5de..4e741dacf9d752 100644
--- a/homeassistant/components/ephember/climate.py
+++ b/homeassistant/components/ephember/climate.py
@@ -11,8 +11,6 @@
     ATTR_TEMPERATURE, TEMP_CELSIUS, CONF_USERNAME, CONF_PASSWORD, STATE_OFF)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyephember==0.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 # Return cached results if last scan was less then this time ago
diff --git a/homeassistant/components/epson/media_player.py b/homeassistant/components/epson/media_player.py
index 57bd18e0ee0e50..8273ca9a21a1e2 100644
--- a/homeassistant/components/epson/media_player.py
+++ b/homeassistant/components/epson/media_player.py
@@ -15,8 +15,6 @@
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['epson-projector==0.1.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CMODE = 'cmode'
diff --git a/homeassistant/components/eq3btsmart/climate.py b/homeassistant/components/eq3btsmart/climate.py
index f02bd2bc9a55e2..fc12438fcf37d0 100644
--- a/homeassistant/components/eq3btsmart/climate.py
+++ b/homeassistant/components/eq3btsmart/climate.py
@@ -13,8 +13,6 @@
     TEMP_CELSIUS, PRECISION_HALVES)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-eq3bt==0.1.9', 'construct==2.9.45']
-
 _LOGGER = logging.getLogger(__name__)
 
 STATE_BOOST = 'boost'
diff --git a/homeassistant/components/esphome/__init__.py b/homeassistant/components/esphome/__init__.py
index 9e6f6367cda4fd..9b1e0691d13027 100644
--- a/homeassistant/components/esphome/__init__.py
+++ b/homeassistant/components/esphome/__init__.py
@@ -32,8 +32,6 @@
         ServiceCall, UserService
 
 DOMAIN = 'esphome'
-REQUIREMENTS = ['aioesphomeapi==2.0.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DISPATCHER_UPDATE_ENTITY = 'esphome_{entry_id}_update_{component_key}_{key}'
diff --git a/homeassistant/components/esphome/binary_sensor.py b/homeassistant/components/esphome/binary_sensor.py
index 2db2f209fa5ac9..ff3fc2597925d3 100644
--- a/homeassistant/components/esphome/binary_sensor.py
+++ b/homeassistant/components/esphome/binary_sensor.py
@@ -10,7 +10,6 @@
     # pylint: disable=unused-import
     from aioesphomeapi import BinarySensorInfo, BinarySensorState  # noqa
 
-DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/camera.py b/homeassistant/components/esphome/camera.py
index 319a2c2a4d9150..bb80ca72724374 100644
--- a/homeassistant/components/esphome/camera.py
+++ b/homeassistant/components/esphome/camera.py
@@ -13,7 +13,6 @@
     # pylint: disable=unused-import
     from aioesphomeapi import CameraInfo, CameraState  # noqa
 
-DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/climate.py b/homeassistant/components/esphome/climate.py
index e3cd9e488bf60d..e95f9e446337f2 100644
--- a/homeassistant/components/esphome/climate.py
+++ b/homeassistant/components/esphome/climate.py
@@ -19,7 +19,6 @@
     # pylint: disable=unused-import
     from aioesphomeapi import ClimateInfo, ClimateState, ClimateMode  # noqa
 
-DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/cover.py b/homeassistant/components/esphome/cover.py
index 68eb4221a931c9..5eb12aa86ec3bf 100644
--- a/homeassistant/components/esphome/cover.py
+++ b/homeassistant/components/esphome/cover.py
@@ -15,7 +15,6 @@
     # pylint: disable=unused-import
     from aioesphomeapi import CoverInfo, CoverState  # noqa
 
-DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/fan.py b/homeassistant/components/esphome/fan.py
index 973fa85774c0a9..35938de2455023 100644
--- a/homeassistant/components/esphome/fan.py
+++ b/homeassistant/components/esphome/fan.py
@@ -14,7 +14,6 @@
     # pylint: disable=unused-import
     from aioesphomeapi import FanInfo, FanState, FanSpeed  # noqa
 
-DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/light.py b/homeassistant/components/esphome/light.py
index c84c50010d9482..3d55713b123c68 100644
--- a/homeassistant/components/esphome/light.py
+++ b/homeassistant/components/esphome/light.py
@@ -17,7 +17,6 @@
     # pylint: disable=unused-import
     from aioesphomeapi import LightInfo, LightState  # noqa
 
-DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/sensor.py b/homeassistant/components/esphome/sensor.py
index e4fb7ef82baf85..d8ae91e9243228 100644
--- a/homeassistant/components/esphome/sensor.py
+++ b/homeassistant/components/esphome/sensor.py
@@ -13,7 +13,6 @@
     from aioesphomeapi import ( # noqa
         SensorInfo, SensorState, TextSensorInfo, TextSensorState)
 
-DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/switch.py b/homeassistant/components/esphome/switch.py
index e736c1df2097f1..41c5663537c7a7 100644
--- a/homeassistant/components/esphome/switch.py
+++ b/homeassistant/components/esphome/switch.py
@@ -12,7 +12,6 @@
     # pylint: disable=unused-import
     from aioesphomeapi import SwitchInfo, SwitchState  # noqa
 
-DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/etherscan/sensor.py b/homeassistant/components/etherscan/sensor.py
index 082295bfea5479..83805ec4d2015b 100644
--- a/homeassistant/components/etherscan/sensor.py
+++ b/homeassistant/components/etherscan/sensor.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['python-etherscan-api==0.0.3']
-
 ATTRIBUTION = "Data provided by etherscan.io"
 
 CONF_TOKEN_ADDRESS = 'token_address'
diff --git a/homeassistant/components/eufy/__init__.py b/homeassistant/components/eufy/__init__.py
index b0bd9109363e39..8425780b76b956 100644
--- a/homeassistant/components/eufy/__init__.py
+++ b/homeassistant/components/eufy/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['lakeside==0.12']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'eufy'
diff --git a/homeassistant/components/eufy/light.py b/homeassistant/components/eufy/light.py
index 62bc058f1555a8..1d08e42fff72fd 100644
--- a/homeassistant/components/eufy/light.py
+++ b/homeassistant/components/eufy/light.py
@@ -11,8 +11,6 @@
     color_temperature_mired_to_kelvin as mired_to_kelvin,
     color_temperature_kelvin_to_mired as kelvin_to_mired)
 
-DEPENDENCIES = ['eufy']
-
 _LOGGER = logging.getLogger(__name__)
 
 EUFY_MAX_KELVIN = 6500
diff --git a/homeassistant/components/eufy/switch.py b/homeassistant/components/eufy/switch.py
index 96d68194107217..3216bfed69ea7e 100644
--- a/homeassistant/components/eufy/switch.py
+++ b/homeassistant/components/eufy/switch.py
@@ -3,8 +3,6 @@
 
 from homeassistant.components.switch import SwitchDevice
 
-DEPENDENCIES = ['eufy']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/everlights/light.py b/homeassistant/components/everlights/light.py
index a628f25ea288f0..c5fb025370dfef 100644
--- a/homeassistant/components/everlights/light.py
+++ b/homeassistant/components/everlights/light.py
@@ -15,8 +15,6 @@
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.exceptions import PlatformNotReady
 
-REQUIREMENTS = ['pyeverlights==0.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_EVERLIGHTS = (SUPPORT_EFFECT | SUPPORT_BRIGHTNESS | SUPPORT_COLOR)
diff --git a/homeassistant/components/evohome/__init__.py b/homeassistant/components/evohome/__init__.py
index 87a563ecd6d07f..459a3636a06d3f 100644
--- a/homeassistant/components/evohome/__init__.py
+++ b/homeassistant/components/evohome/__init__.py
@@ -19,8 +19,6 @@
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 
-REQUIREMENTS = ['evohomeclient==0.3.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'evohome'
diff --git a/homeassistant/components/familyhub/camera.py b/homeassistant/components/familyhub/camera.py
index 18aa969132da79..e9a8bcd94a6c75 100644
--- a/homeassistant/components/familyhub/camera.py
+++ b/homeassistant/components/familyhub/camera.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['python-family-hub-local==0.0.2']
-
 DEFAULT_NAME = 'FamilyHub Camera'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/fan/__init__.py b/homeassistant/components/fan/__init__.py
index e67ba390a98e53..23015769f28867 100644
--- a/homeassistant/components/fan/__init__.py
+++ b/homeassistant/components/fan/__init__.py
@@ -18,7 +18,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'fan'
-DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=30)
 
 GROUP_NAME_ALL_FANS = 'all fans'
diff --git a/homeassistant/components/fastdotcom/__init__.py b/homeassistant/components/fastdotcom/__init__.py
index 973cc8e36597f1..3fe860a81fdb1a 100644
--- a/homeassistant/components/fastdotcom/__init__.py
+++ b/homeassistant/components/fastdotcom/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import async_track_time_interval
 
-REQUIREMENTS = ['fastdotcom==0.0.3']
-
 DOMAIN = 'fastdotcom'
 DATA_UPDATED = '{}_data_updated'.format(DOMAIN)
 
diff --git a/homeassistant/components/fastdotcom/sensor.py b/homeassistant/components/fastdotcom/sensor.py
index 37fc0815ddcd93..c9af8e53ab86cb 100644
--- a/homeassistant/components/fastdotcom/sensor.py
+++ b/homeassistant/components/fastdotcom/sensor.py
@@ -7,8 +7,6 @@
 
 from . import DATA_UPDATED, DOMAIN as FASTDOTCOM_DOMAIN
 
-DEPENDENCIES = ['fastdotcom']
-
 _LOGGER = logging.getLogger(__name__)
 
 ICON = 'mdi:speedometer'
diff --git a/homeassistant/components/fedex/sensor.py b/homeassistant/components/fedex/sensor.py
index 74ad4f7d0e53c4..aec1cee053c14c 100644
--- a/homeassistant/components/fedex/sensor.py
+++ b/homeassistant/components/fedex/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.util import slugify
 from homeassistant.util.dt import now, parse_date
 
-REQUIREMENTS = ['fedexdeliverymanager==1.0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 COOKIE = 'fedexdeliverymanager_cookies.pickle'
diff --git a/homeassistant/components/feedreader/__init__.py b/homeassistant/components/feedreader/__init__.py
index 86744bfd39c771..d2acb674ec7d3d 100644
--- a/homeassistant/components/feedreader/__init__.py
+++ b/homeassistant/components/feedreader/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.event import track_time_interval
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['feedparser-homeassistant==5.2.2.dev1']
-
 _LOGGER = getLogger(__name__)
 
 CONF_URLS = 'urls'
diff --git a/homeassistant/components/ffmpeg/__init__.py b/homeassistant/components/ffmpeg/__init__.py
index 05bc1d991678d0..7252e617c5ace7 100644
--- a/homeassistant/components/ffmpeg/__init__.py
+++ b/homeassistant/components/ffmpeg/__init__.py
@@ -12,8 +12,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['ha-ffmpeg==2.0']
-
 DOMAIN = 'ffmpeg'
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/ffmpeg/camera.py b/homeassistant/components/ffmpeg/camera.py
index 8bca13cfbb7c94..0e8a69e0bcf3d0 100644
--- a/homeassistant/components/ffmpeg/camera.py
+++ b/homeassistant/components/ffmpeg/camera.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['ffmpeg']
-
 DEFAULT_NAME = 'FFmpeg'
 DEFAULT_ARGUMENTS = "-pred 1"
 
diff --git a/homeassistant/components/ffmpeg_motion/binary_sensor.py b/homeassistant/components/ffmpeg_motion/binary_sensor.py
index c274d84329e62d..03aacf3aafbe31 100644
--- a/homeassistant/components/ffmpeg_motion/binary_sensor.py
+++ b/homeassistant/components/ffmpeg_motion/binary_sensor.py
@@ -12,8 +12,6 @@
     CONF_INITIAL_STATE)
 from homeassistant.const import CONF_NAME
 
-DEPENDENCIES = ['ffmpeg']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_RESET = 'reset'
diff --git a/homeassistant/components/ffmpeg_noise/binary_sensor.py b/homeassistant/components/ffmpeg_noise/binary_sensor.py
index 7efcc3deda2637..7fbda8ca18b619 100644
--- a/homeassistant/components/ffmpeg_noise/binary_sensor.py
+++ b/homeassistant/components/ffmpeg_noise/binary_sensor.py
@@ -12,8 +12,6 @@
     CONF_INITIAL_STATE)
 from homeassistant.const import CONF_NAME
 
-DEPENDENCIES = ['ffmpeg']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PEAK = 'peak'
diff --git a/homeassistant/components/fibaro/__init__.py b/homeassistant/components/fibaro/__init__.py
index 6b37b178a595bb..9e60d1c0c3ab44 100644
--- a/homeassistant/components/fibaro/__init__.py
+++ b/homeassistant/components/fibaro/__init__.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import convert, slugify
 
-REQUIREMENTS = ['fiblary3==0.1.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CURRENT_ENERGY_KWH = 'current_energy_kwh'
diff --git a/homeassistant/components/fibaro/binary_sensor.py b/homeassistant/components/fibaro/binary_sensor.py
index f71a5f3662e8e2..44448227a1c24f 100644
--- a/homeassistant/components/fibaro/binary_sensor.py
+++ b/homeassistant/components/fibaro/binary_sensor.py
@@ -7,8 +7,6 @@
 
 from . import FIBARO_DEVICES, FibaroDevice
 
-DEPENDENCIES = ['fibaro']
-
 _LOGGER = logging.getLogger(__name__)
 
 SENSOR_TYPES = {
diff --git a/homeassistant/components/fibaro/climate.py b/homeassistant/components/fibaro/climate.py
index 0d1ecc3a77f9cf..4b12a907ce325d 100644
--- a/homeassistant/components/fibaro/climate.py
+++ b/homeassistant/components/fibaro/climate.py
@@ -44,8 +44,6 @@
 FAN_UP_DOWN = 'up_down'
 FAN_QUIET = 'quiet'
 
-DEPENDENCIES = ['fibaro']
-
 _LOGGER = logging.getLogger(__name__)
 
 # SDS13781-10 Z-Wave Application Command Class Specification 2019-01-04
diff --git a/homeassistant/components/fibaro/cover.py b/homeassistant/components/fibaro/cover.py
index 0f5cc32bc9695b..0ccbed0144b387 100644
--- a/homeassistant/components/fibaro/cover.py
+++ b/homeassistant/components/fibaro/cover.py
@@ -6,8 +6,6 @@
 
 from . import FIBARO_DEVICES, FibaroDevice
 
-DEPENDENCIES = ['fibaro']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/fibaro/light.py b/homeassistant/components/fibaro/light.py
index 600b566b36b23c..a741de972f054f 100644
--- a/homeassistant/components/fibaro/light.py
+++ b/homeassistant/components/fibaro/light.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['fibaro']
-
 
 def scaleto255(value):
     """Scale the input value from 0-100 to 0-255."""
diff --git a/homeassistant/components/fibaro/scene.py b/homeassistant/components/fibaro/scene.py
index 93f0cd5b63afd0..f9f96844319b94 100644
--- a/homeassistant/components/fibaro/scene.py
+++ b/homeassistant/components/fibaro/scene.py
@@ -5,8 +5,6 @@
 
 from . import FIBARO_DEVICES, FibaroDevice
 
-DEPENDENCIES = ['fibaro']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/fibaro/sensor.py b/homeassistant/components/fibaro/sensor.py
index 20a37fd3c23756..db9d103d87eb6c 100644
--- a/homeassistant/components/fibaro/sensor.py
+++ b/homeassistant/components/fibaro/sensor.py
@@ -22,7 +22,6 @@
         ['Light', 'lx', None, DEVICE_CLASS_ILLUMINANCE]
 }
 
-DEPENDENCIES = ['fibaro']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/fibaro/switch.py b/homeassistant/components/fibaro/switch.py
index 024531f62c70e8..f134b424484de6 100644
--- a/homeassistant/components/fibaro/switch.py
+++ b/homeassistant/components/fibaro/switch.py
@@ -6,7 +6,6 @@
 
 from . import FIBARO_DEVICES, FibaroDevice
 
-DEPENDENCIES = ['fibaro']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/fido/sensor.py b/homeassistant/components/fido/sensor.py
index 00754c5ba68c12..ea66acaf808ecf 100644
--- a/homeassistant/components/fido/sensor.py
+++ b/homeassistant/components/fido/sensor.py
@@ -20,8 +20,6 @@
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyfido==2.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 KILOBITS = 'Kb'  # type: str
diff --git a/homeassistant/components/fints/sensor.py b/homeassistant/components/fints/sensor.py
index dce52785fbf269..cb993ada8dade7 100644
--- a/homeassistant/components/fints/sensor.py
+++ b/homeassistant/components/fints/sensor.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['fints==1.0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(hours=4)
diff --git a/homeassistant/components/fitbit/sensor.py b/homeassistant/components/fitbit/sensor.py
index abbe69c3e1d7db..889920239edbb9 100644
--- a/homeassistant/components/fitbit/sensor.py
+++ b/homeassistant/components/fitbit/sensor.py
@@ -17,8 +17,6 @@
 from homeassistant.util.json import load_json, save_json
 
 
-REQUIREMENTS = ['fitbit==0.3.0']
-
 _CONFIGURING = {}
 _LOGGER = logging.getLogger(__name__)
 
@@ -32,8 +30,6 @@
 CONF_CLOCK_FORMAT = 'clock_format'
 ATTRIBUTION = 'Data provided by Fitbit.com'
 
-DEPENDENCIES = ['http']
-
 FITBIT_AUTH_CALLBACK_PATH = '/api/fitbit/callback'
 FITBIT_AUTH_START = '/api/fitbit'
 FITBIT_CONFIG_FILE = 'fitbit.conf'
diff --git a/homeassistant/components/fixer/sensor.py b/homeassistant/components/fixer/sensor.py
index f746d2008e10f3..4cf2b0b9243260 100644
--- a/homeassistant/components/fixer/sensor.py
+++ b/homeassistant/components/fixer/sensor.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['fixerio==1.0.0a0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_EXCHANGE_RATE = 'Exchange rate'
diff --git a/homeassistant/components/flexit/climate.py b/homeassistant/components/flexit/climate.py
index fe7b5ff8e7cd2f..d1cf97f047a277 100644
--- a/homeassistant/components/flexit/climate.py
+++ b/homeassistant/components/flexit/climate.py
@@ -25,9 +25,6 @@
     CONF_HUB, DEFAULT_HUB, DOMAIN as MODBUS_DOMAIN)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyflexit==0.3']
-DEPENDENCIES = ['modbus']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_HUB, default=DEFAULT_HUB): cv.string,
     vol.Required(CONF_SLAVE): vol.All(int, vol.Range(min=0, max=32)),
diff --git a/homeassistant/components/flic/binary_sensor.py b/homeassistant/components/flic/binary_sensor.py
index 083ac01ab4a2d9..3381550b5781eb 100644
--- a/homeassistant/components/flic/binary_sensor.py
+++ b/homeassistant/components/flic/binary_sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.components.binary_sensor import (
     BinarySensorDevice, PLATFORM_SCHEMA)
 
-REQUIREMENTS = ['pyflic-homeassistant==0.4.dev0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_TIMEOUT = 3
diff --git a/homeassistant/components/flunearyou/sensor.py b/homeassistant/components/flunearyou/sensor.py
index 65de2c6ae43e0d..148a3ee41592d2 100644
--- a/homeassistant/components/flunearyou/sensor.py
+++ b/homeassistant/components/flunearyou/sensor.py
@@ -13,7 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pyflunearyou==1.0.3']
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CITY = 'city'
diff --git a/homeassistant/components/flux/switch.py b/homeassistant/components/flux/switch.py
index fdd0c09b9d7a60..f0134f04d890dc 100644
--- a/homeassistant/components/flux/switch.py
+++ b/homeassistant/components/flux/switch.py
@@ -42,8 +42,6 @@
 MODE_MIRED = 'mired'
 MODE_RGB = 'rgb'
 DEFAULT_MODE = MODE_XY
-DEPENDENCIES = ['light']
-
 
 PLATFORM_SCHEMA = vol.Schema({
     vol.Required(CONF_PLATFORM): 'flux',
diff --git a/homeassistant/components/flux_led/light.py b/homeassistant/components/flux_led/light.py
index 0ed14c49ec851c..56d088f20788da 100644
--- a/homeassistant/components/flux_led/light.py
+++ b/homeassistant/components/flux_led/light.py
@@ -15,8 +15,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-REQUIREMENTS = ['flux_led==0.22']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_AUTOMATIC_ADD = 'automatic_add'
diff --git a/homeassistant/components/folder_watcher/__init__.py b/homeassistant/components/folder_watcher/__init__.py
index babfbd9e9aa61c..411f6b480dcb8c 100644
--- a/homeassistant/components/folder_watcher/__init__.py
+++ b/homeassistant/components/folder_watcher/__init__.py
@@ -8,8 +8,6 @@
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['watchdog==0.8.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_FOLDER = 'folder'
diff --git a/homeassistant/components/foobot/sensor.py b/homeassistant/components/foobot/sensor.py
index 2eeca5243a66f5..f59392bde985b6 100644
--- a/homeassistant/components/foobot/sensor.py
+++ b/homeassistant/components/foobot/sensor.py
@@ -16,8 +16,6 @@
 from homeassistant.util import Throttle
 
 
-REQUIREMENTS = ['foobot_async==0.3.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_HUMIDITY = 'humidity'
diff --git a/homeassistant/components/foscam/camera.py b/homeassistant/components/foscam/camera.py
index 6ce8f1865fcf77..f83c3f1966ae7e 100644
--- a/homeassistant/components/foscam/camera.py
+++ b/homeassistant/components/foscam/camera.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['libpyfoscam==1.0']
-
 CONF_IP = 'ip'
 CONF_RTSP_PORT = 'rtsp_port'
 
diff --git a/homeassistant/components/foursquare/__init__.py b/homeassistant/components/foursquare/__init__.py
index 0c5a48049ecc9e..dd8349998886e5 100644
--- a/homeassistant/components/foursquare/__init__.py
+++ b/homeassistant/components/foursquare/__init__.py
@@ -12,7 +12,6 @@
 
 CONF_PUSH_SECRET = 'push_secret'
 
-DEPENDENCIES = ['http']
 DOMAIN = 'foursquare'
 
 EVENT_CHECKIN = 'foursquare.checkin'
diff --git a/homeassistant/components/free_mobile/notify.py b/homeassistant/components/free_mobile/notify.py
index 03beef52357af6..c7dacd44019d48 100644
--- a/homeassistant/components/free_mobile/notify.py
+++ b/homeassistant/components/free_mobile/notify.py
@@ -9,8 +9,6 @@
 from homeassistant.components.notify import (PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-REQUIREMENTS = ['freesms==0.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/freebox/__init__.py b/homeassistant/components/freebox/__init__.py
index 7accf7820f4d14..2cd9f6b35721d7 100644
--- a/homeassistant/components/freebox/__init__.py
+++ b/homeassistant/components/freebox/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers import config_validation as cv, discovery
 from homeassistant.helpers.discovery import async_load_platform
 
-REQUIREMENTS = ['aiofreepybox==0.0.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = "freebox"
diff --git a/homeassistant/components/freebox/device_tracker.py b/homeassistant/components/freebox/device_tracker.py
index 5418c1c61a7322..40c1967f60f6e4 100644
--- a/homeassistant/components/freebox/device_tracker.py
+++ b/homeassistant/components/freebox/device_tracker.py
@@ -6,8 +6,6 @@
 
 from . import DATA_FREEBOX
 
-DEPENDENCIES = ['freebox']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/freebox/sensor.py b/homeassistant/components/freebox/sensor.py
index 328665ab51cd9b..8dcc5f54b2e67e 100644
--- a/homeassistant/components/freebox/sensor.py
+++ b/homeassistant/components/freebox/sensor.py
@@ -5,8 +5,6 @@
 
 from . import DATA_FREEBOX
 
-DEPENDENCIES = ['freebox']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/freebox/switch.py b/homeassistant/components/freebox/switch.py
index 4de194fc9023fd..e0c24d2b9f9f21 100644
--- a/homeassistant/components/freebox/switch.py
+++ b/homeassistant/components/freebox/switch.py
@@ -5,8 +5,6 @@
 
 from . import DATA_FREEBOX
 
-DEPENDENCIES = ['freebox']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/fritz/device_tracker.py b/homeassistant/components/fritz/device_tracker.py
index 3e3e04f44475fb..fc9f65633ff86e 100644
--- a/homeassistant/components/fritz/device_tracker.py
+++ b/homeassistant/components/fritz/device_tracker.py
@@ -8,8 +8,6 @@
     DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME
 
-REQUIREMENTS = ['fritzconnection==0.6.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DEFAULT_IP = '169.254.1.1'  # This IP is valid for all FRITZ!Box routers.
diff --git a/homeassistant/components/fritzbox/__init__.py b/homeassistant/components/fritzbox/__init__.py
index 81ba019acbc0b0..610c68741405b5 100644
--- a/homeassistant/components/fritzbox/__init__.py
+++ b/homeassistant/components/fritzbox/__init__.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pyfritzhome==0.4.0']
-
 SUPPORTED_DOMAINS = ['binary_sensor', 'climate', 'switch', 'sensor']
 
 DOMAIN = 'fritzbox'
diff --git a/homeassistant/components/fritzbox/binary_sensor.py b/homeassistant/components/fritzbox/binary_sensor.py
index 65578c571805e9..a763a3b3b0e4c2 100644
--- a/homeassistant/components/fritzbox/binary_sensor.py
+++ b/homeassistant/components/fritzbox/binary_sensor.py
@@ -7,8 +7,6 @@
 
 from . import DOMAIN as FRITZBOX_DOMAIN
 
-DEPENDENCIES = ['fritzbox']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/fritzbox/climate.py b/homeassistant/components/fritzbox/climate.py
index e2c9be833ac4d3..4dfa09c49fa960 100644
--- a/homeassistant/components/fritzbox/climate.py
+++ b/homeassistant/components/fritzbox/climate.py
@@ -16,8 +16,6 @@
     ATTR_STATE_LOCKED, ATTR_STATE_SUMMER_MODE, ATTR_STATE_WINDOW_OPEN,
     DOMAIN as FRITZBOX_DOMAIN)
 
-DEPENDENCIES = ['fritzbox']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_FLAGS = (SUPPORT_TARGET_TEMPERATURE | SUPPORT_OPERATION_MODE)
diff --git a/homeassistant/components/fritzbox/sensor.py b/homeassistant/components/fritzbox/sensor.py
index 7309f8cc6180a6..123d8835318166 100644
--- a/homeassistant/components/fritzbox/sensor.py
+++ b/homeassistant/components/fritzbox/sensor.py
@@ -9,8 +9,6 @@
 from . import (
     ATTR_STATE_DEVICE_LOCKED, ATTR_STATE_LOCKED, DOMAIN as FRITZBOX_DOMAIN)
 
-DEPENDENCIES = ['fritzbox']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/fritzbox/switch.py b/homeassistant/components/fritzbox/switch.py
index e227cdaef8a00a..ae1219cefda3ce 100644
--- a/homeassistant/components/fritzbox/switch.py
+++ b/homeassistant/components/fritzbox/switch.py
@@ -10,8 +10,6 @@
 from . import (
     ATTR_STATE_DEVICE_LOCKED, ATTR_STATE_LOCKED, DOMAIN as FRITZBOX_DOMAIN)
 
-DEPENDENCIES = ['fritzbox']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_TOTAL_CONSUMPTION = 'total_consumption'
diff --git a/homeassistant/components/fritzbox_callmonitor/sensor.py b/homeassistant/components/fritzbox_callmonitor/sensor.py
index a6641bc14ad5b5..95c0879996f5ed 100644
--- a/homeassistant/components/fritzbox_callmonitor/sensor.py
+++ b/homeassistant/components/fritzbox_callmonitor/sensor.py
@@ -16,8 +16,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['fritzconnection==0.6.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PHONEBOOK = 'phonebook'
diff --git a/homeassistant/components/fritzbox_netmonitor/sensor.py b/homeassistant/components/fritzbox_netmonitor/sensor.py
index 93f834a894d3b7..ec8e38bb24ba56 100644
--- a/homeassistant/components/fritzbox_netmonitor/sensor.py
+++ b/homeassistant/components/fritzbox_netmonitor/sensor.py
@@ -11,8 +11,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['fritzconnection==0.6.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DEFAULT_NAME = 'fritz_netmonitor'
diff --git a/homeassistant/components/fritzdect/switch.py b/homeassistant/components/fritzdect/switch.py
index 449ae5a76f13ae..d3cd00a73f5762 100644
--- a/homeassistant/components/fritzdect/switch.py
+++ b/homeassistant/components/fritzdect/switch.py
@@ -11,8 +11,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.const import TEMP_CELSIUS, ATTR_TEMPERATURE
 
-REQUIREMENTS = ['fritzhome==1.0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 # Standard Fritz Box IP
diff --git a/homeassistant/components/frontend/__init__.py b/homeassistant/components/frontend/__init__.py
index cfee41dc6ae806..6f258b2d59c865 100644
--- a/homeassistant/components/frontend/__init__.py
+++ b/homeassistant/components/frontend/__init__.py
@@ -21,12 +21,7 @@
 
 from .storage import async_setup_frontend_storage
 
-REQUIREMENTS = ['home-assistant-frontend==20190410.0']
-
 DOMAIN = 'frontend'
-DEPENDENCIES = ['api', 'websocket_api', 'http', 'system_log',
-                'auth', 'onboarding', 'lovelace']
-
 CONF_THEMES = 'themes'
 CONF_EXTRA_HTML_URL = 'extra_html_url'
 CONF_EXTRA_HTML_URL_ES5 = 'extra_html_url_es5'
diff --git a/homeassistant/components/frontier_silicon/media_player.py b/homeassistant/components/frontier_silicon/media_player.py
index 4f28d83e6cfe36..64aa1d3a012617 100644
--- a/homeassistant/components/frontier_silicon/media_player.py
+++ b/homeassistant/components/frontier_silicon/media_player.py
@@ -15,8 +15,6 @@
     STATE_PLAYING, STATE_UNKNOWN)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['afsapi==0.0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_FRONTIER_SILICON = SUPPORT_PAUSE | SUPPORT_VOLUME_SET | \
diff --git a/homeassistant/components/futurenow/light.py b/homeassistant/components/futurenow/light.py
index 4b570fd0a4dcdb..91ec8b0794d540 100644
--- a/homeassistant/components/futurenow/light.py
+++ b/homeassistant/components/futurenow/light.py
@@ -11,8 +11,6 @@
     PLATFORM_SCHEMA)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyfnip==0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DRIVER = 'driver'
diff --git a/homeassistant/components/gc100/__init__.py b/homeassistant/components/gc100/__init__.py
index 36e9c61b1ba1e1..b875d045cc09db 100644
--- a/homeassistant/components/gc100/__init__.py
+++ b/homeassistant/components/gc100/__init__.py
@@ -7,8 +7,6 @@
     EVENT_HOMEASSISTANT_STOP, CONF_HOST, CONF_PORT)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-gc100==1.0.3a']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PORTS = 'ports'
diff --git a/homeassistant/components/gc100/binary_sensor.py b/homeassistant/components/gc100/binary_sensor.py
index 9588506af77666..4ba68a17799655 100644
--- a/homeassistant/components/gc100/binary_sensor.py
+++ b/homeassistant/components/gc100/binary_sensor.py
@@ -8,8 +8,6 @@
 
 from . import CONF_PORTS, DATA_GC100
 
-DEPENDENCIES = ['gc100']
-
 _SENSORS_SCHEMA = vol.Schema({
     cv.string: cv.string,
 })
diff --git a/homeassistant/components/gc100/switch.py b/homeassistant/components/gc100/switch.py
index 1ffb2726495ffc..eea98a4dc23c61 100644
--- a/homeassistant/components/gc100/switch.py
+++ b/homeassistant/components/gc100/switch.py
@@ -8,8 +8,6 @@
 
 from . import CONF_PORTS, DATA_GC100
 
-DEPENDENCIES = ['gc100']
-
 _SWITCH_SCHEMA = vol.Schema({
     cv.string: cv.string,
 })
diff --git a/homeassistant/components/gearbest/sensor.py b/homeassistant/components/gearbest/sensor.py
index e4f85a1892dfc7..ee0ee6d4e3bffb 100644
--- a/homeassistant/components/gearbest/sensor.py
+++ b/homeassistant/components/gearbest/sensor.py
@@ -11,7 +11,6 @@
 from homeassistant.helpers.event import track_time_interval
 from homeassistant.const import (CONF_NAME, CONF_ID, CONF_URL, CONF_CURRENCY)
 
-REQUIREMENTS = ['gearbest_parser==1.0.7']
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ITEMS = 'items'
diff --git a/homeassistant/components/geizhals/sensor.py b/homeassistant/components/geizhals/sensor.py
index d619d768c234e3..03c263f54ab1d5 100644
--- a/homeassistant/components/geizhals/sensor.py
+++ b/homeassistant/components/geizhals/sensor.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.const import CONF_NAME
 
-REQUIREMENTS = ['geizhals==0.0.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DESCRIPTION = 'description'
diff --git a/homeassistant/components/generic_thermostat/climate.py b/homeassistant/components/generic_thermostat/climate.py
index 35efa82c8a3c1f..cfa8ba64ea5e7e 100644
--- a/homeassistant/components/generic_thermostat/climate.py
+++ b/homeassistant/components/generic_thermostat/climate.py
@@ -23,8 +23,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['switch', 'sensor']
-
 DEFAULT_TOLERANCE = 0.3
 DEFAULT_NAME = 'Generic Thermostat'
 
diff --git a/homeassistant/components/geo_json_events/geo_location.py b/homeassistant/components/geo_json_events/geo_location.py
index e89616126d5f24..f7d79ae7145230 100644
--- a/homeassistant/components/geo_json_events/geo_location.py
+++ b/homeassistant/components/geo_json_events/geo_location.py
@@ -16,8 +16,6 @@
     async_dispatcher_connect, dispatcher_send)
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['geojson_client==0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_EXTERNAL_ID = 'external_id'
diff --git a/homeassistant/components/geo_rss_events/sensor.py b/homeassistant/components/geo_rss_events/sensor.py
index f71a60c2e83e89..f900812385b00d 100644
--- a/homeassistant/components/geo_rss_events/sensor.py
+++ b/homeassistant/components/geo_rss_events/sensor.py
@@ -20,8 +20,6 @@
     CONF_LATITUDE, CONF_LONGITUDE, CONF_RADIUS, CONF_URL)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['georss_generic_client==0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CATEGORY = 'category'
diff --git a/homeassistant/components/geofency/__init__.py b/homeassistant/components/geofency/__init__.py
index 88b72f02cc2e9f..0b4b757ce9efb0 100644
--- a/homeassistant/components/geofency/__init__.py
+++ b/homeassistant/components/geofency/__init__.py
@@ -16,8 +16,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'geofency'
-DEPENDENCIES = ['webhook']
-
 CONF_MOBILE_BEACONS = 'mobile_beacons'
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/geofency/device_tracker.py b/homeassistant/components/geofency/device_tracker.py
index 0a1a9d5f32edc6..abccf610f5e44f 100644
--- a/homeassistant/components/geofency/device_tracker.py
+++ b/homeassistant/components/geofency/device_tracker.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['geofency']
-
 DATA_KEY = '{}.{}'.format(GEOFENCY_DOMAIN, DEVICE_TRACKER_DOMAIN)
 
 
diff --git a/homeassistant/components/github/sensor.py b/homeassistant/components/github/sensor.py
index 5a86233d561ff7..d552d2c65ccc2f 100644
--- a/homeassistant/components/github/sensor.py
+++ b/homeassistant/components/github/sensor.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['PyGithub==1.43.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_REPOS = 'repositories'
diff --git a/homeassistant/components/gitlab_ci/sensor.py b/homeassistant/components/gitlab_ci/sensor.py
index dd574b348d8239..54cbf34fdfc2c8 100644
--- a/homeassistant/components/gitlab_ci/sensor.py
+++ b/homeassistant/components/gitlab_ci/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['python-gitlab==1.6.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_BUILD_BRANCH = 'build branch'
diff --git a/homeassistant/components/gitter/sensor.py b/homeassistant/components/gitter/sensor.py
index 2af9c20fb29094..06fb6e3a3b5440 100644
--- a/homeassistant/components/gitter/sensor.py
+++ b/homeassistant/components/gitter/sensor.py
@@ -8,8 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['gitterpy==0.1.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_MENTION = 'mention'
diff --git a/homeassistant/components/glances/sensor.py b/homeassistant/components/glances/sensor.py
index db8f0397887e89..2a883e33da68d7 100644
--- a/homeassistant/components/glances/sensor.py
+++ b/homeassistant/components/glances/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['glances_api==0.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_VERSION = 'version'
diff --git a/homeassistant/components/gntp/notify.py b/homeassistant/components/gntp/notify.py
index fb3e96e83ab827..005043c1384941 100644
--- a/homeassistant/components/gntp/notify.py
+++ b/homeassistant/components/gntp/notify.py
@@ -10,8 +10,6 @@
 from homeassistant.components.notify import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
-REQUIREMENTS = ['gntp==1.0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 _GNTP_LOGGER = logging.getLogger('gntp')
diff --git a/homeassistant/components/goalfeed/__init__.py b/homeassistant/components/goalfeed/__init__.py
index 6f0149f657a908..4a7e4ea980a4c5 100644
--- a/homeassistant/components/goalfeed/__init__.py
+++ b/homeassistant/components/goalfeed/__init__.py
@@ -9,7 +9,6 @@
 
 # Version downgraded due to regression in library
 # For details: https://github.com/nlsdfnbch/Pysher/issues/38
-REQUIREMENTS = ['pysher==1.0.1']
 DOMAIN = 'goalfeed'
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/gogogate2/cover.py b/homeassistant/components/gogogate2/cover.py
index 4d40ddd2c72ee9..610c131bda5bcd 100644
--- a/homeassistant/components/gogogate2/cover.py
+++ b/homeassistant/components/gogogate2/cover.py
@@ -10,8 +10,6 @@
     CONF_IP_ADDRESS, CONF_NAME)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pygogogate2==0.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'gogogate2'
diff --git a/homeassistant/components/google/__init__.py b/homeassistant/components/google/__init__.py
index 0216094de9b872..e9bbf3f96cdd9f 100644
--- a/homeassistant/components/google/__init__.py
+++ b/homeassistant/components/google/__init__.py
@@ -13,12 +13,6 @@
 from homeassistant.helpers.event import track_time_change
 from homeassistant.util import convert, dt
 
-REQUIREMENTS = [
-    'google-api-python-client==1.6.4',
-    'httplib2==0.10.3',
-    'oauth2client==4.0.0',
-]
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'google'
diff --git a/homeassistant/components/google/tts.py b/homeassistant/components/google/tts.py
index 49a945cbbfd241..4d988bed21cfc7 100644
--- a/homeassistant/components/google/tts.py
+++ b/homeassistant/components/google/tts.py
@@ -12,8 +12,6 @@
 from homeassistant.components.tts import CONF_LANG, PLATFORM_SCHEMA, Provider
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-REQUIREMENTS = ['gTTS-token==1.1.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 GOOGLE_SPEECH_URL = "https://translate.google.com/translate_tts"
diff --git a/homeassistant/components/google_assistant/__init__.py b/homeassistant/components/google_assistant/__init__.py
index 0fd167c2729436..2d3a19afa1302a 100644
--- a/homeassistant/components/google_assistant/__init__.py
+++ b/homeassistant/components/google_assistant/__init__.py
@@ -28,8 +28,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['http']
-
 ENTITY_SCHEMA = vol.Schema({
     vol.Optional(CONF_NAME): cv.string,
     vol.Optional(CONF_EXPOSE): cv.boolean,
diff --git a/homeassistant/components/google_maps/device_tracker.py b/homeassistant/components/google_maps/device_tracker.py
index 7bc9be00b8cc66..5788392190aa8f 100644
--- a/homeassistant/components/google_maps/device_tracker.py
+++ b/homeassistant/components/google_maps/device_tracker.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.typing import ConfigType
 from homeassistant.util import slugify, dt as dt_util
 
-REQUIREMENTS = ['locationsharinglib==3.0.11']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ADDRESS = 'address'
diff --git a/homeassistant/components/google_pubsub/__init__.py b/homeassistant/components/google_pubsub/__init__.py
index 18c068ea454bcc..8aaa7a17ac44c4 100644
--- a/homeassistant/components/google_pubsub/__init__.py
+++ b/homeassistant/components/google_pubsub/__init__.py
@@ -15,8 +15,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['google-cloud-pubsub==0.39.1']
-
 DOMAIN = 'google_pubsub'
 
 CONF_PROJECT_ID = 'project_id'
diff --git a/homeassistant/components/google_travel_time/sensor.py b/homeassistant/components/google_travel_time/sensor.py
index b448830ab02aa6..ef4fc76f53ea14 100644
--- a/homeassistant/components/google_travel_time/sensor.py
+++ b/homeassistant/components/google_travel_time/sensor.py
@@ -15,8 +15,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['googlemaps==2.5.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DESTINATION = 'destination'
diff --git a/homeassistant/components/googlehome/__init__.py b/homeassistant/components/googlehome/__init__.py
index 6ebc2f512b1fef..073081a9634285 100644
--- a/homeassistant/components/googlehome/__init__.py
+++ b/homeassistant/components/googlehome/__init__.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['googledevices==1.0.2']
-
 DOMAIN = 'googlehome'
 CLIENT = 'googlehome_client'
 
diff --git a/homeassistant/components/googlehome/device_tracker.py b/homeassistant/components/googlehome/device_tracker.py
index c024cde0c6ce66..3b6bc5d341c6ce 100644
--- a/homeassistant/components/googlehome/device_tracker.py
+++ b/homeassistant/components/googlehome/device_tracker.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['googlehome']
-
 DEFAULT_SCAN_INTERVAL = timedelta(seconds=10)
 
 
diff --git a/homeassistant/components/googlehome/sensor.py b/homeassistant/components/googlehome/sensor.py
index 4f37740da85ed2..088f4352fa3a87 100644
--- a/homeassistant/components/googlehome/sensor.py
+++ b/homeassistant/components/googlehome/sensor.py
@@ -8,8 +8,6 @@
 
 from . import CLIENT, DOMAIN as GOOGLEHOME_DOMAIN, NAME
 
-DEPENDENCIES = ['googlehome']
-
 SCAN_INTERVAL = timedelta(seconds=10)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/gpmdp/media_player.py b/homeassistant/components/gpmdp/media_player.py
index 788126b957f9fc..76253d32db837a 100644
--- a/homeassistant/components/gpmdp/media_player.py
+++ b/homeassistant/components/gpmdp/media_player.py
@@ -16,8 +16,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util.json import load_json, save_json
 
-REQUIREMENTS = ['websocket-client==0.54.0']
-
 _CONFIGURING = {}
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/gpsd/sensor.py b/homeassistant/components/gpsd/sensor.py
index 62307cb1011631..cccf59a822a34e 100644
--- a/homeassistant/components/gpsd/sensor.py
+++ b/homeassistant/components/gpsd/sensor.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['gps3==0.33.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CLIMB = 'climb'
diff --git a/homeassistant/components/gpslogger/__init__.py b/homeassistant/components/gpslogger/__init__.py
index 6bc9d11a68e088..6887b85d02d689 100644
--- a/homeassistant/components/gpslogger/__init__.py
+++ b/homeassistant/components/gpslogger/__init__.py
@@ -15,8 +15,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'gpslogger'
-DEPENDENCIES = ['webhook']
-
 TRACKER_UPDATE = '{}_tracker_update'.format(DOMAIN)
 
 ATTR_ALTITUDE = 'altitude'
diff --git a/homeassistant/components/gpslogger/device_tracker.py b/homeassistant/components/gpslogger/device_tracker.py
index c9496975272811..67967821083514 100644
--- a/homeassistant/components/gpslogger/device_tracker.py
+++ b/homeassistant/components/gpslogger/device_tracker.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['gpslogger']
-
 DATA_KEY = '{}.{}'.format(GPSLOGGER_DOMAIN, DEVICE_TRACKER_DOMAIN)
 
 
diff --git a/homeassistant/components/greeneye_monitor/__init__.py b/homeassistant/components/greeneye_monitor/__init__.py
index aedc98aac314e6..0f12c3cd47945a 100644
--- a/homeassistant/components/greeneye_monitor/__init__.py
+++ b/homeassistant/components/greeneye_monitor/__init__.py
@@ -11,8 +11,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 
-REQUIREMENTS = ['greeneye_monitor==1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CHANNELS = 'channels'
diff --git a/homeassistant/components/greeneye_monitor/sensor.py b/homeassistant/components/greeneye_monitor/sensor.py
index 8321bb768cabf0..ddfa5c1504b005 100644
--- a/homeassistant/components/greeneye_monitor/sensor.py
+++ b/homeassistant/components/greeneye_monitor/sensor.py
@@ -23,8 +23,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['greeneye_monitor']
-
 DATA_PULSES = 'pulses'
 DATA_WATT_SECONDS = 'watt_seconds'
 
diff --git a/homeassistant/components/greenwave/light.py b/homeassistant/components/greenwave/light.py
index b8efe8ae17dcba..a8418a01ac2ee0 100644
--- a/homeassistant/components/greenwave/light.py
+++ b/homeassistant/components/greenwave/light.py
@@ -10,7 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['greenwavereality==0.5.1']
 _LOGGER = logging.getLogger(__name__)
 
 CONF_VERSION = 'version'
diff --git a/homeassistant/components/gstreamer/media_player.py b/homeassistant/components/gstreamer/media_player.py
index 094a561d310ea5..f74040105130f4 100644
--- a/homeassistant/components/gstreamer/media_player.py
+++ b/homeassistant/components/gstreamer/media_player.py
@@ -11,8 +11,6 @@
 from homeassistant.const import CONF_NAME, EVENT_HOMEASSISTANT_STOP, STATE_IDLE
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['gstreamer-player==1.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PIPELINE = 'pipeline'
diff --git a/homeassistant/components/gtfs/sensor.py b/homeassistant/components/gtfs/sensor.py
index 9e89a8ad844de3..0a9301f8c33378 100644
--- a/homeassistant/components/gtfs/sensor.py
+++ b/homeassistant/components/gtfs/sensor.py
@@ -17,8 +17,6 @@
 from homeassistant.util import slugify
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['pygtfs==0.1.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ARRIVAL = 'arrival'
diff --git a/homeassistant/components/gtt/sensor.py b/homeassistant/components/gtt/sensor.py
index 659984fadea8f9..ecabd5f0a718ac 100644
--- a/homeassistant/components/gtt/sensor.py
+++ b/homeassistant/components/gtt/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pygtt==1.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_STOP = 'stop'
diff --git a/homeassistant/components/habitica/__init__.py b/homeassistant/components/habitica/__init__.py
index 23113a1388b4f7..611e8df006ae13 100644
--- a/homeassistant/components/habitica/__init__.py
+++ b/homeassistant/components/habitica/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers import config_validation as cv, discovery
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-REQUIREMENTS = ['habitipy==0.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_API_USER = 'api_user'
diff --git a/homeassistant/components/hangouts/__init__.py b/homeassistant/components/hangouts/__init__.py
index 29cdc29e5ada6c..50936ac62a060f 100644
--- a/homeassistant/components/hangouts/__init__.py
+++ b/homeassistant/components/hangouts/__init__.py
@@ -19,8 +19,6 @@
     MESSAGE_SCHEMA, SERVICE_RECONNECT, SERVICE_SEND_MESSAGE, SERVICE_UPDATE,
     TARGETS_SCHEMA)
 
-REQUIREMENTS = ['hangups==0.4.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/hangouts/notify.py b/homeassistant/components/hangouts/notify.py
index de9af2e077512b..e88f80afbcde29 100644
--- a/homeassistant/components/hangouts/notify.py
+++ b/homeassistant/components/hangouts/notify.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = [DOMAIN]
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_DEFAULT_CONVERSATIONS): [TARGETS_SCHEMA]
 })
diff --git a/homeassistant/components/harman_kardon_avr/media_player.py b/homeassistant/components/harman_kardon_avr/media_player.py
index cec0ac4f5c8653..dc200f39b9c8af 100644
--- a/homeassistant/components/harman_kardon_avr/media_player.py
+++ b/homeassistant/components/harman_kardon_avr/media_player.py
@@ -12,8 +12,6 @@
 from homeassistant.const import (
     CONF_HOST, CONF_NAME, CONF_PORT, STATE_OFF, STATE_ON)
 
-REQUIREMENTS = ['hkavr==0.0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Harman Kardon AVR'
diff --git a/homeassistant/components/harmony/remote.py b/homeassistant/components/harmony/remote.py
index 12b3a91e12b675..c4aebb1bdcbb4a 100644
--- a/homeassistant/components/harmony/remote.py
+++ b/homeassistant/components/harmony/remote.py
@@ -16,8 +16,6 @@
 from homeassistant.exceptions import PlatformNotReady
 from homeassistant.util import slugify
 
-REQUIREMENTS = ['aioharmony==0.1.11']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CHANNEL = 'channel'
diff --git a/homeassistant/components/hassio/__init__.py b/homeassistant/components/hassio/__init__.py
index e8d04b1596d980..2fdb859c320934 100644
--- a/homeassistant/components/hassio/__init__.py
+++ b/homeassistant/components/hassio/__init__.py
@@ -25,7 +25,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'hassio'
-DEPENDENCIES = ['http']
 STORAGE_KEY = DOMAIN
 STORAGE_VERSION = 1
 
diff --git a/homeassistant/components/hdmi_cec/__init__.py b/homeassistant/components/hdmi_cec/__init__.py
index 8eb13c5ab213ae..189cc748d5d994 100644
--- a/homeassistant/components/hdmi_cec/__init__.py
+++ b/homeassistant/components/hdmi_cec/__init__.py
@@ -17,8 +17,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pyCEC==0.4.13']
-
 DOMAIN = 'hdmi_cec'
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/hdmi_cec/media_player.py b/homeassistant/components/hdmi_cec/media_player.py
index b2d2910e145bbe..4468fd9d648dc8 100644
--- a/homeassistant/components/hdmi_cec/media_player.py
+++ b/homeassistant/components/hdmi_cec/media_player.py
@@ -11,8 +11,6 @@
 
 from . import ATTR_NEW, CecDevice
 
-DEPENDENCIES = ['hdmi_cec']
-
 _LOGGER = logging.getLogger(__name__)
 
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
diff --git a/homeassistant/components/hdmi_cec/switch.py b/homeassistant/components/hdmi_cec/switch.py
index 639f545707ee2b..9fb003f6d6a015 100644
--- a/homeassistant/components/hdmi_cec/switch.py
+++ b/homeassistant/components/hdmi_cec/switch.py
@@ -6,8 +6,6 @@
 
 from . import ATTR_NEW, CecDevice
 
-DEPENDENCIES = ['hdmi_cec']
-
 _LOGGER = logging.getLogger(__name__)
 
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
diff --git a/homeassistant/components/heatmiser/climate.py b/homeassistant/components/heatmiser/climate.py
index fc9057bc905699..045ffdd34c586a 100644
--- a/homeassistant/components/heatmiser/climate.py
+++ b/homeassistant/components/heatmiser/climate.py
@@ -10,8 +10,6 @@
     TEMP_CELSIUS, ATTR_TEMPERATURE, CONF_PORT, CONF_NAME, CONF_ID)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['heatmiserV3==0.9.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_IPADDRESS = 'ipaddress'
diff --git a/homeassistant/components/heos/__init__.py b/homeassistant/components/heos/__init__.py
index 084444be4ea87f..529ee27997ed50 100644
--- a/homeassistant/components/heos/__init__.py
+++ b/homeassistant/components/heos/__init__.py
@@ -19,8 +19,6 @@
     COMMAND_RETRY_ATTEMPTS, COMMAND_RETRY_DELAY, DATA_CONTROLLER,
     DATA_SOURCE_MANAGER, DOMAIN, SIGNAL_HEOS_SOURCES_UPDATED)
 
-REQUIREMENTS = ['pyheos==0.3.1']
-
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({
         vol.Required(CONF_HOST): cv.string
diff --git a/homeassistant/components/heos/media_player.py b/homeassistant/components/heos/media_player.py
index 72d42f8f66f6bb..0da9db31bb28f6 100644
--- a/homeassistant/components/heos/media_player.py
+++ b/homeassistant/components/heos/media_player.py
@@ -17,8 +17,6 @@
 from .const import (
     DATA_SOURCE_MANAGER, DOMAIN as HEOS_DOMAIN, SIGNAL_HEOS_SOURCES_UPDATED)
 
-DEPENDENCIES = ['heos']
-
 BASE_SUPPORTED_FEATURES = SUPPORT_VOLUME_MUTE | SUPPORT_VOLUME_SET | \
                           SUPPORT_VOLUME_STEP | SUPPORT_CLEAR_PLAYLIST | \
                           SUPPORT_SHUFFLE_SET | SUPPORT_SELECT_SOURCE
diff --git a/homeassistant/components/hikvision/binary_sensor.py b/homeassistant/components/hikvision/binary_sensor.py
index a6a82c9ee1b814..f15d67396151b4 100644
--- a/homeassistant/components/hikvision/binary_sensor.py
+++ b/homeassistant/components/hikvision/binary_sensor.py
@@ -13,7 +13,6 @@
     CONF_SSL, EVENT_HOMEASSISTANT_STOP, EVENT_HOMEASSISTANT_START,
     ATTR_LAST_TRIP_TIME, CONF_CUSTOMIZE)
 
-REQUIREMENTS = ['pyhik==0.2.2']
 _LOGGER = logging.getLogger(__name__)
 
 CONF_IGNORED = 'ignored'
diff --git a/homeassistant/components/hikvisioncam/switch.py b/homeassistant/components/hikvisioncam/switch.py
index 6e5dcdac9aae6b..373f84cee0e3a5 100644
--- a/homeassistant/components/hikvisioncam/switch.py
+++ b/homeassistant/components/hikvisioncam/switch.py
@@ -10,7 +10,6 @@
 from homeassistant.helpers.entity import ToggleEntity
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['hikvision==0.4']
 # This is the last working version, please test before updating
 
 _LOGGING = logging.getLogger(__name__)
diff --git a/homeassistant/components/hipchat/notify.py b/homeassistant/components/hipchat/notify.py
index 5128b8beea341c..f12fd1ffa76e12 100644
--- a/homeassistant/components/hipchat/notify.py
+++ b/homeassistant/components/hipchat/notify.py
@@ -10,8 +10,6 @@
                                              PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-REQUIREMENTS = ['hipnotify==1.0.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_COLOR = 'color'
diff --git a/homeassistant/components/history/__init__.py b/homeassistant/components/history/__init__.py
index 7b07fac19a692d..7efe4f2beb20ab 100644
--- a/homeassistant/components/history/__init__.py
+++ b/homeassistant/components/history/__init__.py
@@ -19,8 +19,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'history'
-DEPENDENCIES = ['recorder', 'http']
-
 CONF_ORDER = 'use_include_order'
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/history_graph/__init__.py b/homeassistant/components/history_graph/__init__.py
index 893f3514d77f93..964d47d25025d3 100644
--- a/homeassistant/components/history_graph/__init__.py
+++ b/homeassistant/components/history_graph/__init__.py
@@ -8,8 +8,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.entity_component import EntityComponent
 
-DEPENDENCIES = ['history']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'history_graph'
diff --git a/homeassistant/components/history_stats/sensor.py b/homeassistant/components/history_stats/sensor.py
index f1eea4dd693086..a0a08d4833e2b1 100644
--- a/homeassistant/components/history_stats/sensor.py
+++ b/homeassistant/components/history_stats/sensor.py
@@ -20,8 +20,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'history_stats'
-DEPENDENCIES = ['history']
-
 CONF_START = 'start'
 CONF_END = 'end'
 CONF_DURATION = 'duration'
diff --git a/homeassistant/components/hive/__init__.py b/homeassistant/components/hive/__init__.py
index 934c44028ac27b..fdda1f1f5426cd 100644
--- a/homeassistant/components/hive/__init__.py
+++ b/homeassistant/components/hive/__init__.py
@@ -8,8 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 
-REQUIREMENTS = ['pyhiveapi==0.2.17']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'hive'
diff --git a/homeassistant/components/hive/binary_sensor.py b/homeassistant/components/hive/binary_sensor.py
index a0973f4d8e93a7..97900c2852e277 100644
--- a/homeassistant/components/hive/binary_sensor.py
+++ b/homeassistant/components/hive/binary_sensor.py
@@ -3,8 +3,6 @@
 
 from . import DATA_HIVE, DOMAIN
 
-DEPENDENCIES = ['hive']
-
 DEVICETYPE_DEVICE_CLASS = {
     'motionsensor': 'motion',
     'contactsensor': 'opening',
diff --git a/homeassistant/components/hive/climate.py b/homeassistant/components/hive/climate.py
index dac7feb2927fe6..ab9b63dad6094f 100644
--- a/homeassistant/components/hive/climate.py
+++ b/homeassistant/components/hive/climate.py
@@ -8,8 +8,6 @@
 
 from . import DATA_HIVE, DOMAIN
 
-DEPENDENCIES = ['hive']
-
 HIVE_TO_HASS_STATE = {
     'SCHEDULE': STATE_AUTO,
     'MANUAL': STATE_HEAT,
diff --git a/homeassistant/components/hive/light.py b/homeassistant/components/hive/light.py
index 3a2176c3eedab7..67331b12b35c4b 100644
--- a/homeassistant/components/hive/light.py
+++ b/homeassistant/components/hive/light.py
@@ -6,8 +6,6 @@
 
 from . import DATA_HIVE, DOMAIN
 
-DEPENDENCIES = ['hive']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up Hive light devices."""
diff --git a/homeassistant/components/hive/sensor.py b/homeassistant/components/hive/sensor.py
index e7b7d6b45977aa..b8887d27409b28 100644
--- a/homeassistant/components/hive/sensor.py
+++ b/homeassistant/components/hive/sensor.py
@@ -4,8 +4,6 @@
 
 from . import DATA_HIVE, DOMAIN
 
-DEPENDENCIES = ['hive']
-
 FRIENDLY_NAMES = {
     'Hub_OnlineStatus': 'Hive Hub Status',
     'Hive_OutsideTemperature': 'Outside Temperature',
diff --git a/homeassistant/components/hive/switch.py b/homeassistant/components/hive/switch.py
index fd4d3d69b50a06..ea4094d573cef3 100644
--- a/homeassistant/components/hive/switch.py
+++ b/homeassistant/components/hive/switch.py
@@ -3,8 +3,6 @@
 
 from . import DATA_HIVE, DOMAIN
 
-DEPENDENCIES = ['hive']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up Hive switches."""
diff --git a/homeassistant/components/hlk_sw16/__init__.py b/homeassistant/components/hlk_sw16/__init__.py
index acb604bc0103b3..79de0bd18be1ce 100644
--- a/homeassistant/components/hlk_sw16/__init__.py
+++ b/homeassistant/components/hlk_sw16/__init__.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_send, async_dispatcher_connect)
 
-REQUIREMENTS = ['hlk-sw16==0.0.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_DEVICE_REGISTER = 'hlk_sw16_device_register'
diff --git a/homeassistant/components/hlk_sw16/switch.py b/homeassistant/components/hlk_sw16/switch.py
index 164a504fa34406..b7353f037c1269 100644
--- a/homeassistant/components/hlk_sw16/switch.py
+++ b/homeassistant/components/hlk_sw16/switch.py
@@ -4,9 +4,7 @@
 from homeassistant.components.switch import ToggleEntity
 from homeassistant.const import CONF_NAME
 
-from . import DATA_DEVICE_REGISTER, DOMAIN as HLK_SW16, SW16Device
-
-DEPENDENCIES = [HLK_SW16]
+from . import DATA_DEVICE_REGISTER, SW16Device
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homekit/__init__.py b/homeassistant/components/homekit/__init__.py
index 9d7de58be4bc5a..f524455fedeaf6 100644
--- a/homeassistant/components/homekit/__init__.py
+++ b/homeassistant/components/homekit/__init__.py
@@ -26,8 +26,6 @@
 from .util import (
     show_setup_message, validate_entity_config, validate_media_player_features)
 
-REQUIREMENTS = ['HAP-python==2.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 MAX_DEVICES = 100
diff --git a/homeassistant/components/homekit_controller/__init__.py b/homeassistant/components/homekit_controller/__init__.py
index 2a43d0ac9ce5c4..6765db0085e8bf 100644
--- a/homeassistant/components/homekit_controller/__init__.py
+++ b/homeassistant/components/homekit_controller/__init__.py
@@ -12,8 +12,6 @@
 )
 from .const import DOMAIN   # noqa: pylint: disable=unused-import
 
-REQUIREMENTS = ['homekit[IP]==0.13.0']
-
 HOMEKIT_IGNORE = [
     'BSB002',
     'Home Assistant Bridge',
diff --git a/homeassistant/components/homekit_controller/alarm_control_panel.py b/homeassistant/components/homekit_controller/alarm_control_panel.py
index f9bc25f4237e0c..fe15cfe2eab9a5 100644
--- a/homeassistant/components/homekit_controller/alarm_control_panel.py
+++ b/homeassistant/components/homekit_controller/alarm_control_panel.py
@@ -8,8 +8,6 @@
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-DEPENDENCIES = ['homekit_controller']
-
 ICON = 'mdi:security'
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/homekit_controller/binary_sensor.py b/homeassistant/components/homekit_controller/binary_sensor.py
index 2bd03b18932146..a5b7008200236b 100644
--- a/homeassistant/components/homekit_controller/binary_sensor.py
+++ b/homeassistant/components/homekit_controller/binary_sensor.py
@@ -5,8 +5,6 @@
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-DEPENDENCIES = ['homekit_controller']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/homekit_controller/climate.py b/homeassistant/components/homekit_controller/climate.py
index 67f1fb72bcfbb5..dfbd6f68daa53d 100644
--- a/homeassistant/components/homekit_controller/climate.py
+++ b/homeassistant/components/homekit_controller/climate.py
@@ -9,8 +9,6 @@
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-DEPENDENCIES = ['homekit_controller']
-
 _LOGGER = logging.getLogger(__name__)
 
 # Map of Homekit operation modes to hass modes
diff --git a/homeassistant/components/homekit_controller/cover.py b/homeassistant/components/homekit_controller/cover.py
index 26b7613ed2b6d5..0c9ce2bc5286b9 100644
--- a/homeassistant/components/homekit_controller/cover.py
+++ b/homeassistant/components/homekit_controller/cover.py
@@ -12,8 +12,6 @@
 
 STATE_STOPPED = 'stopped'
 
-DEPENDENCIES = ['homekit_controller']
-
 _LOGGER = logging.getLogger(__name__)
 
 CURRENT_GARAGE_STATE_MAP = {
diff --git a/homeassistant/components/homekit_controller/light.py b/homeassistant/components/homekit_controller/light.py
index cb9259df4a992d..a139b1f29328fa 100644
--- a/homeassistant/components/homekit_controller/light.py
+++ b/homeassistant/components/homekit_controller/light.py
@@ -7,8 +7,6 @@
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-DEPENDENCIES = ['homekit_controller']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/homekit_controller/lock.py b/homeassistant/components/homekit_controller/lock.py
index 0d0275fda164e7..67de2bfaf3f6b6 100644
--- a/homeassistant/components/homekit_controller/lock.py
+++ b/homeassistant/components/homekit_controller/lock.py
@@ -7,8 +7,6 @@
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-DEPENDENCIES = ['homekit_controller']
-
 _LOGGER = logging.getLogger(__name__)
 
 STATE_JAMMED = 'jammed'
diff --git a/homeassistant/components/homekit_controller/sensor.py b/homeassistant/components/homekit_controller/sensor.py
index 8cbc8f248bafe0..b377da80142cf8 100644
--- a/homeassistant/components/homekit_controller/sensor.py
+++ b/homeassistant/components/homekit_controller/sensor.py
@@ -3,8 +3,6 @@
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-DEPENDENCIES = ['homekit_controller']
-
 HUMIDITY_ICON = 'mdi-water-percent'
 TEMP_C_ICON = "mdi-temperature-celsius"
 BRIGHTNESS_ICON = "mdi-brightness-6"
diff --git a/homeassistant/components/homekit_controller/switch.py b/homeassistant/components/homekit_controller/switch.py
index 34e83c06526758..c09502373a6089 100644
--- a/homeassistant/components/homekit_controller/switch.py
+++ b/homeassistant/components/homekit_controller/switch.py
@@ -5,8 +5,6 @@
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-DEPENDENCIES = ['homekit_controller']
-
 OUTLET_IN_USE = "outlet_in_use"
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/homematic/__init__.py b/homeassistant/components/homematic/__init__.py
index a8109af5ed8f84..97c805aa2aca5d 100644
--- a/homeassistant/components/homematic/__init__.py
+++ b/homeassistant/components/homematic/__init__.py
@@ -14,8 +14,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pyhomematic==0.1.58']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'homematic'
diff --git a/homeassistant/components/homematic/binary_sensor.py b/homeassistant/components/homematic/binary_sensor.py
index 7bf260a9bdc385..dfd7b7a72bd81b 100644
--- a/homeassistant/components/homematic/binary_sensor.py
+++ b/homeassistant/components/homematic/binary_sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['homematic']
-
 SENSOR_TYPES_CLASS = {
     'IPShutterContact': 'opening',
     'MaxShutterContact': 'opening',
diff --git a/homeassistant/components/homematic/climate.py b/homeassistant/components/homematic/climate.py
index 146cad1bc4ca75..e10d486b727db9 100644
--- a/homeassistant/components/homematic/climate.py
+++ b/homeassistant/components/homematic/climate.py
@@ -9,8 +9,6 @@
 
 from . import ATTR_DISCOVER_DEVICES, HM_ATTRIBUTE_SUPPORT, HMDevice
 
-DEPENDENCIES = ['homematic']
-
 _LOGGER = logging.getLogger(__name__)
 
 STATE_BOOST = 'boost'
diff --git a/homeassistant/components/homematic/cover.py b/homeassistant/components/homematic/cover.py
index 33b764dc31fa21..387eb26f433d06 100644
--- a/homeassistant/components/homematic/cover.py
+++ b/homeassistant/components/homematic/cover.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['homematic']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the platform."""
diff --git a/homeassistant/components/homematic/light.py b/homeassistant/components/homematic/light.py
index c3601461173783..72aa9a977d4a72 100644
--- a/homeassistant/components/homematic/light.py
+++ b/homeassistant/components/homematic/light.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['homematic']
-
 SUPPORT_HOMEMATIC = SUPPORT_BRIGHTNESS
 
 
diff --git a/homeassistant/components/homematic/lock.py b/homeassistant/components/homematic/lock.py
index 3c0ca040c5f522..7f796b32885cb8 100644
--- a/homeassistant/components/homematic/lock.py
+++ b/homeassistant/components/homematic/lock.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['homematic']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Homematic lock platform."""
diff --git a/homeassistant/components/homematic/notify.py b/homeassistant/components/homematic/notify.py
index 9054c1fa0ad6ca..74ea7095b41d3e 100644
--- a/homeassistant/components/homematic/notify.py
+++ b/homeassistant/components/homematic/notify.py
@@ -13,8 +13,6 @@
     SERVICE_SET_DEVICE_VALUE)
 
 _LOGGER = logging.getLogger(__name__)
-DEPENDENCIES = ["homematic"]
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(ATTR_ADDRESS): vol.All(cv.string, vol.Upper),
     vol.Required(ATTR_CHANNEL): vol.Coerce(int),
diff --git a/homeassistant/components/homematic/sensor.py b/homeassistant/components/homematic/sensor.py
index 401d11f70c849b..fca8c746a49cc8 100644
--- a/homeassistant/components/homematic/sensor.py
+++ b/homeassistant/components/homematic/sensor.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['homematic']
-
 HM_STATE_HA_CAST = {
     'RotaryHandleSensor': {0: 'closed', 1: 'tilted', 2: 'open'},
     'RotaryHandleSensorIP': {0: 'closed', 1: 'tilted', 2: 'open'},
diff --git a/homeassistant/components/homematic/switch.py b/homeassistant/components/homematic/switch.py
index 393ad09b3104ef..b77b3a1f7008ba 100644
--- a/homeassistant/components/homematic/switch.py
+++ b/homeassistant/components/homematic/switch.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['homematic']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the HomeMatic switch platform."""
diff --git a/homeassistant/components/homematicip_cloud/__init__.py b/homeassistant/components/homematicip_cloud/__init__.py
index 1330a2750ae6db..4a24120be95592 100644
--- a/homeassistant/components/homematicip_cloud/__init__.py
+++ b/homeassistant/components/homematicip_cloud/__init__.py
@@ -15,8 +15,6 @@
 from .device import HomematicipGenericDevice  # noqa: F401
 from .hap import HomematicipAuth, HomematicipHAP  # noqa: F401
 
-REQUIREMENTS = ['homematicip==0.10.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/homematicip_cloud/alarm_control_panel.py b/homeassistant/components/homematicip_cloud/alarm_control_panel.py
index df0201340ed127..cb35833c231a42 100644
--- a/homeassistant/components/homematicip_cloud/alarm_control_panel.py
+++ b/homeassistant/components/homematicip_cloud/alarm_control_panel.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['homematicip_cloud']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/homematicip_cloud/binary_sensor.py b/homeassistant/components/homematicip_cloud/binary_sensor.py
index 44c17282dda03d..48e9520a952621 100644
--- a/homeassistant/components/homematicip_cloud/binary_sensor.py
+++ b/homeassistant/components/homematicip_cloud/binary_sensor.py
@@ -6,8 +6,6 @@
 from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 from .device import ATTR_GROUP_MEMBER_UNREACHABLE
 
-DEPENDENCIES = ['homematicip_cloud']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_MOTIONDETECTED = 'motion detected'
diff --git a/homeassistant/components/homematicip_cloud/cover.py b/homeassistant/components/homematicip_cloud/cover.py
index 735e8789670452..e572e3d97546ad 100644
--- a/homeassistant/components/homematicip_cloud/cover.py
+++ b/homeassistant/components/homematicip_cloud/cover.py
@@ -5,8 +5,6 @@
 
 from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 
-DEPENDENCIES = ['homematicip_cloud']
-
 _LOGGER = logging.getLogger(__name__)
 
 HMIP_COVER_OPEN = 0
diff --git a/homeassistant/components/homematicip_cloud/light.py b/homeassistant/components/homematicip_cloud/light.py
index f5bac66388c6d5..b67e4114db20d3 100644
--- a/homeassistant/components/homematicip_cloud/light.py
+++ b/homeassistant/components/homematicip_cloud/light.py
@@ -7,8 +7,6 @@
 
 from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 
-DEPENDENCIES = ['homematicip_cloud']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ENERGY_COUNTER = 'energy_counter_kwh'
diff --git a/homeassistant/components/homematicip_cloud/sensor.py b/homeassistant/components/homematicip_cloud/sensor.py
index 5f345f419fac09..201a5be6c51547 100644
--- a/homeassistant/components/homematicip_cloud/sensor.py
+++ b/homeassistant/components/homematicip_cloud/sensor.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['homematicip_cloud']
-
 ATTR_TEMPERATURE_OFFSET = 'temperature_offset'
 ATTR_WIND_DIRECTION = 'wind_direction'
 ATTR_WIND_DIRECTION_VARIATION = 'wind_direction_variation_in_degree'
diff --git a/homeassistant/components/homematicip_cloud/switch.py b/homeassistant/components/homematicip_cloud/switch.py
index f9713cd8c006cc..b96e0c4cf4d60c 100644
--- a/homeassistant/components/homematicip_cloud/switch.py
+++ b/homeassistant/components/homematicip_cloud/switch.py
@@ -6,8 +6,6 @@
 from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 from .device import ATTR_GROUP_MEMBER_UNREACHABLE
 
-DEPENDENCIES = ['homematicip_cloud']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/homematicip_cloud/weather.py b/homeassistant/components/homematicip_cloud/weather.py
index ba3157471f9c80..74b302b18fc33a 100644
--- a/homeassistant/components/homematicip_cloud/weather.py
+++ b/homeassistant/components/homematicip_cloud/weather.py
@@ -7,8 +7,6 @@
 
 from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 
-DEPENDENCIES = ['homematicip_cloud']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/homeworks/__init__.py b/homeassistant/components/homeworks/__init__.py
index d0769ed25e6193..b722a5a4a2de29 100644
--- a/homeassistant/components/homeworks/__init__.py
+++ b/homeassistant/components/homeworks/__init__.py
@@ -12,8 +12,6 @@
     async_dispatcher_connect, dispatcher_send)
 from homeassistant.util import slugify
 
-REQUIREMENTS = ['pyhomeworks==0.0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'homeworks'
diff --git a/homeassistant/components/homeworks/light.py b/homeassistant/components/homeworks/light.py
index ca41dff9834b44..710be7c0077ae2 100644
--- a/homeassistant/components/homeworks/light.py
+++ b/homeassistant/components/homeworks/light.py
@@ -11,8 +11,6 @@
     CONF_ADDR, CONF_DIMMERS, CONF_RATE, ENTITY_SIGNAL, HOMEWORKS_CONTROLLER,
     HomeworksDevice)
 
-DEPENDENCIES = ['homeworks']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/honeywell/climate.py b/homeassistant/components/honeywell/climate.py
index 7460ed6e9d0a8c..df19f67a876d73 100644
--- a/homeassistant/components/honeywell/climate.py
+++ b/homeassistant/components/honeywell/climate.py
@@ -15,8 +15,6 @@
     CONF_PASSWORD, CONF_USERNAME, TEMP_CELSIUS, TEMP_FAHRENHEIT,
     ATTR_TEMPERATURE, CONF_REGION)
 
-REQUIREMENTS = ['evohomeclient==0.3.2', 'somecomfort==0.5.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_FAN = 'fan'
diff --git a/homeassistant/components/horizon/media_player.py b/homeassistant/components/horizon/media_player.py
index 51168e4ef2e1a7..ab72b051f1bd81 100644
--- a/homeassistant/components/horizon/media_player.py
+++ b/homeassistant/components/horizon/media_player.py
@@ -16,8 +16,6 @@
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['horimote==0.4.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Horizon'
diff --git a/homeassistant/components/hp_ilo/sensor.py b/homeassistant/components/hp_ilo/sensor.py
index a017f0ee3e8c08..46fde885613929 100644
--- a/homeassistant/components/hp_ilo/sensor.py
+++ b/homeassistant/components/hp_ilo/sensor.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['python-hpilo==3.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = "HP ILO"
diff --git a/homeassistant/components/html5/notify.py b/homeassistant/components/html5/notify.py
index fa7bf660b79f59..2fcaa266b8504c 100644
--- a/homeassistant/components/html5/notify.py
+++ b/homeassistant/components/html5/notify.py
@@ -24,10 +24,6 @@
     ATTR_DATA, ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, DOMAIN,
     PLATFORM_SCHEMA, BaseNotificationService)
 
-REQUIREMENTS = ['pywebpush==1.9.2']
-
-DEPENDENCIES = ['frontend']
-
 _LOGGER = logging.getLogger(__name__)
 
 REGISTRATIONS_FILE = 'html5_push_registrations.conf'
diff --git a/homeassistant/components/http/__init__.py b/homeassistant/components/http/__init__.py
index 0bcf3f85ff7932..ad64b38200af52 100644
--- a/homeassistant/components/http/__init__.py
+++ b/homeassistant/components/http/__init__.py
@@ -29,8 +29,6 @@
 from .static import CACHE_HEADERS, CachingStaticResource
 from .view import HomeAssistantView  # noqa
 
-REQUIREMENTS = ['aiohttp_cors==0.7.0']
-
 DOMAIN = 'http'
 
 CONF_API_PASSWORD = 'api_password'
diff --git a/homeassistant/components/htu21d/sensor.py b/homeassistant/components/htu21d/sensor.py
index 17182bb833d8c6..01c2b0399b9a76 100644
--- a/homeassistant/components/htu21d/sensor.py
+++ b/homeassistant/components/htu21d/sensor.py
@@ -12,9 +12,6 @@
 from homeassistant.util import Throttle
 from homeassistant.util.temperature import celsius_to_fahrenheit
 
-REQUIREMENTS = ['i2csense==0.0.4',
-                'smbus-cffi==0.5.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_I2C_BUS = 'i2c_bus'
diff --git a/homeassistant/components/huawei_lte/__init__.py b/homeassistant/components/huawei_lte/__init__.py
index a462b1b3072f18..8e401dfd2395e6 100644
--- a/homeassistant/components/huawei_lte/__init__.py
+++ b/homeassistant/components/huawei_lte/__init__.py
@@ -19,8 +19,6 @@
 # https://github.com/quandyfactory/dicttoxml/issues/60
 logging.getLogger('dicttoxml').setLevel(logging.WARNING)
 
-REQUIREMENTS = ['huawei-lte-api==1.1.5']
-
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=10)
 
 DOMAIN = 'huawei_lte'
diff --git a/homeassistant/components/huawei_lte/device_tracker.py b/homeassistant/components/huawei_lte/device_tracker.py
index 69bf42fb3fe5a5..d6c49f5e255e16 100644
--- a/homeassistant/components/huawei_lte/device_tracker.py
+++ b/homeassistant/components/huawei_lte/device_tracker.py
@@ -11,8 +11,6 @@
 from homeassistant.const import CONF_URL
 from ..huawei_lte import DATA_KEY, RouterData
 
-DEPENDENCIES = ['huawei_lte']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_URL): cv.url,
 })
diff --git a/homeassistant/components/huawei_lte/notify.py b/homeassistant/components/huawei_lte/notify.py
index 5e20a774c25d2a..6394140c07fae6 100644
--- a/homeassistant/components/huawei_lte/notify.py
+++ b/homeassistant/components/huawei_lte/notify.py
@@ -11,8 +11,6 @@
 
 from ..huawei_lte import DATA_KEY
 
-DEPENDENCIES = ['huawei_lte']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/huawei_lte/sensor.py b/homeassistant/components/huawei_lte/sensor.py
index 42ad4b52f8d815..42bd1f16271403 100644
--- a/homeassistant/components/huawei_lte/sensor.py
+++ b/homeassistant/components/huawei_lte/sensor.py
@@ -16,8 +16,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['huawei_lte']
-
 DEFAULT_NAME_TEMPLATE = 'Huawei {} {}'
 
 DEFAULT_SENSORS = [
diff --git a/homeassistant/components/hue/__init__.py b/homeassistant/components/hue/__init__.py
index 8f5c27f6516e8d..ac17e6e852f435 100644
--- a/homeassistant/components/hue/__init__.py
+++ b/homeassistant/components/hue/__init__.py
@@ -14,8 +14,6 @@
 # Loading the config flow file will register the flow
 from .config_flow import configured_hosts
 
-REQUIREMENTS = ['aiohue==1.9.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_BRIDGES = "bridges"
diff --git a/homeassistant/components/hue/light.py b/homeassistant/components/hue/light.py
index 0725c86bd954e0..3ba92ef12a7cce 100644
--- a/homeassistant/components/hue/light.py
+++ b/homeassistant/components/hue/light.py
@@ -16,7 +16,6 @@
     Light)
 from homeassistant.util import color
 
-DEPENDENCIES = ['hue']
 SCAN_INTERVAL = timedelta(seconds=5)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/hunterdouglas_powerview/scene.py b/homeassistant/components/hunterdouglas_powerview/scene.py
index 7f0709aa6c1cd6..571e15ab94fe9f 100644
--- a/homeassistant/components/hunterdouglas_powerview/scene.py
+++ b/homeassistant/components/hunterdouglas_powerview/scene.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers.entity import async_generate_entity_id
 
 _LOGGER = logging.getLogger(__name__)
-REQUIREMENTS = ['aiopvapi==1.6.14']
-
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
 HUB_ADDRESS = 'address'
 
diff --git a/homeassistant/components/hydrawise/__init__.py b/homeassistant/components/hydrawise/__init__.py
index 9c7baf6db2e2dd..6ac0ee0322d37c 100644
--- a/homeassistant/components/hydrawise/__init__.py
+++ b/homeassistant/components/hydrawise/__init__.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['hydrawiser==0.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ALLOWED_WATERING_TIME = [5, 10, 15, 30, 45, 60]
diff --git a/homeassistant/components/hydrawise/binary_sensor.py b/homeassistant/components/hydrawise/binary_sensor.py
index 85a51d3649eb55..980e495c7f9d1f 100644
--- a/homeassistant/components/hydrawise/binary_sensor.py
+++ b/homeassistant/components/hydrawise/binary_sensor.py
@@ -12,8 +12,6 @@
     BINARY_SENSORS, DATA_HYDRAWISE, DEVICE_MAP, DEVICE_MAP_INDEX,
     HydrawiseEntity)
 
-DEPENDENCIES = ['hydrawise']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/hydrawise/sensor.py b/homeassistant/components/hydrawise/sensor.py
index fc15a54ed60963..908529c783d276 100644
--- a/homeassistant/components/hydrawise/sensor.py
+++ b/homeassistant/components/hydrawise/sensor.py
@@ -10,8 +10,6 @@
 from . import (
     DATA_HYDRAWISE, DEVICE_MAP, DEVICE_MAP_INDEX, SENSORS, HydrawiseEntity)
 
-DEPENDENCIES = ['hydrawise']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/hydrawise/switch.py b/homeassistant/components/hydrawise/switch.py
index dcbd5274a6237d..ccfa9333e0037e 100644
--- a/homeassistant/components/hydrawise/switch.py
+++ b/homeassistant/components/hydrawise/switch.py
@@ -12,8 +12,6 @@
     DEFAULT_WATERING_TIME, DEVICE_MAP, DEVICE_MAP_INDEX, SWITCHES,
     HydrawiseEntity)
 
-DEPENDENCIES = ['hydrawise']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/hydroquebec/sensor.py b/homeassistant/components/hydroquebec/sensor.py
index 5f0fd9e01aded9..0ec48f3058d817 100644
--- a/homeassistant/components/hydroquebec/sensor.py
+++ b/homeassistant/components/hydroquebec/sensor.py
@@ -20,8 +20,6 @@
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyhydroquebec==2.2.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 KILOWATT_HOUR = ENERGY_KILO_WATT_HOUR
diff --git a/homeassistant/components/ialarm/alarm_control_panel.py b/homeassistant/components/ialarm/alarm_control_panel.py
index 8152c2496e603c..27ff4fc6829f44 100644
--- a/homeassistant/components/ialarm/alarm_control_panel.py
+++ b/homeassistant/components/ialarm/alarm_control_panel.py
@@ -12,8 +12,6 @@
     STATE_ALARM_TRIGGERED)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyialarm==0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'iAlarm'
diff --git a/homeassistant/components/icloud/device_tracker.py b/homeassistant/components/icloud/device_tracker.py
index 1d0e0d2fafb0f6..908fe5ecf90fb4 100644
--- a/homeassistant/components/icloud/device_tracker.py
+++ b/homeassistant/components/icloud/device_tracker.py
@@ -17,8 +17,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pyicloud==0.9.1']
-
 CONF_ACCOUNTNAME = 'account_name'
 CONF_MAX_INTERVAL = 'max_interval'
 CONF_GPS_ACCURACY_THRESHOLD = 'gps_accuracy_threshold'
diff --git a/homeassistant/components/idteck_prox/__init__.py b/homeassistant/components/idteck_prox/__init__.py
index 3de7aa7cc8c5fa..bfb227e0fc1014 100644
--- a/homeassistant/components/idteck_prox/__init__.py
+++ b/homeassistant/components/idteck_prox/__init__.py
@@ -7,8 +7,6 @@
 from homeassistant.const import (
     CONF_HOST, CONF_PORT, CONF_NAME, EVENT_HOMEASSISTANT_STOP)
 
-REQUIREMENTS = ['rfk101py==0.0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = "idteck_prox"
diff --git a/homeassistant/components/ifttt/__init__.py b/homeassistant/components/ifttt/__init__.py
index bad3984ea5bd20..6b5934702aaeb4 100644
--- a/homeassistant/components/ifttt/__init__.py
+++ b/homeassistant/components/ifttt/__init__.py
@@ -9,9 +9,6 @@
 from homeassistant.helpers import config_entry_flow
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyfttt==0.3']
-DEPENDENCIES = ['webhook']
-
 _LOGGER = logging.getLogger(__name__)
 
 EVENT_RECEIVED = 'ifttt_webhook_received'
diff --git a/homeassistant/components/ifttt/alarm_control_panel.py b/homeassistant/components/ifttt/alarm_control_panel.py
index 3f806173196897..a0492a210e03e0 100644
--- a/homeassistant/components/ifttt/alarm_control_panel.py
+++ b/homeassistant/components/ifttt/alarm_control_panel.py
@@ -15,8 +15,6 @@
 
 from . import ATTR_EVENT, DOMAIN as IFTTT_DOMAIN, SERVICE_TRIGGER
 
-DEPENDENCIES = ['ifttt']
-
 _LOGGER = logging.getLogger(__name__)
 
 ALLOWED_STATES = [
diff --git a/homeassistant/components/iglo/light.py b/homeassistant/components/iglo/light.py
index 6851141efb46be..1a6b5839029c9a 100644
--- a/homeassistant/components/iglo/light.py
+++ b/homeassistant/components/iglo/light.py
@@ -12,8 +12,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-REQUIREMENTS = ['iglo==1.2.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'iGlo Light'
diff --git a/homeassistant/components/ihc/__init__.py b/homeassistant/components/ihc/__init__.py
index 102acd82551c4f..7d8acfbdf2eacb 100644
--- a/homeassistant/components/ihc/__init__.py
+++ b/homeassistant/components/ihc/__init__.py
@@ -21,8 +21,6 @@
     SERVICE_SET_RUNTIME_VALUE_FLOAT, SERVICE_SET_RUNTIME_VALUE_INT)
 from .util import async_pulse
 
-REQUIREMENTS = ['ihcsdk==2.3.0', 'defusedxml==0.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 AUTO_SETUP_YAML = 'ihc_auto_setup.yaml'
diff --git a/homeassistant/components/ihc/binary_sensor.py b/homeassistant/components/ihc/binary_sensor.py
index 69e3e1685af8c8..a9a2b66cdde1f6 100644
--- a/homeassistant/components/ihc/binary_sensor.py
+++ b/homeassistant/components/ihc/binary_sensor.py
@@ -6,8 +6,6 @@
 from .const import CONF_INVERTING
 from .ihcdevice import IHCDevice
 
-DEPENDENCIES = ['ihc']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the IHC binary sensor platform."""
diff --git a/homeassistant/components/ihc/light.py b/homeassistant/components/ihc/light.py
index ad6d0fb6511859..72c0dc8f0ba946 100644
--- a/homeassistant/components/ihc/light.py
+++ b/homeassistant/components/ihc/light.py
@@ -9,8 +9,6 @@
 from .ihcdevice import IHCDevice
 from .util import async_pulse, async_set_bool, async_set_int
 
-DEPENDENCIES = ['ihc']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/ihc/sensor.py b/homeassistant/components/ihc/sensor.py
index fd1f2cee53a846..4c63cf41e965ff 100644
--- a/homeassistant/components/ihc/sensor.py
+++ b/homeassistant/components/ihc/sensor.py
@@ -5,8 +5,6 @@
 from . import IHC_CONTROLLER, IHC_DATA, IHC_INFO
 from .ihcdevice import IHCDevice
 
-DEPENDENCIES = ['ihc']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the IHC sensor platform."""
diff --git a/homeassistant/components/ihc/switch.py b/homeassistant/components/ihc/switch.py
index e2189492b8f435..6d3a72a3b661cd 100644
--- a/homeassistant/components/ihc/switch.py
+++ b/homeassistant/components/ihc/switch.py
@@ -6,8 +6,6 @@
 from .ihcdevice import IHCDevice
 from .util import async_pulse, async_set_bool
 
-DEPENDENCIES = ['ihc']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the IHC switch platform."""
diff --git a/homeassistant/components/image_processing/__init__.py b/homeassistant/components/image_processing/__init__.py
index e5193985629629..ce49ebf932ea83 100644
--- a/homeassistant/components/image_processing/__init__.py
+++ b/homeassistant/components/image_processing/__init__.py
@@ -17,8 +17,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'image_processing'
-DEPENDENCIES = ['camera']
-
 SCAN_INTERVAL = timedelta(seconds=10)
 
 DEVICE_CLASSES = [
diff --git a/homeassistant/components/imap/sensor.py b/homeassistant/components/imap/sensor.py
index 5ff23eb8e5d5c4..cbc470beec8e1b 100644
--- a/homeassistant/components/imap/sensor.py
+++ b/homeassistant/components/imap/sensor.py
@@ -15,8 +15,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['aioimaplib==0.7.15']
-
 CONF_SERVER = 'server'
 CONF_FOLDER = 'folder'
 CONF_SEARCH = 'search'
diff --git a/homeassistant/components/influxdb/__init__.py b/homeassistant/components/influxdb/__init__.py
index 551996983c8004..bf2ba1b8ecc71c 100644
--- a/homeassistant/components/influxdb/__init__.py
+++ b/homeassistant/components/influxdb/__init__.py
@@ -18,8 +18,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity_values import EntityValues
 
-REQUIREMENTS = ['influxdb==5.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DB_NAME = 'database'
diff --git a/homeassistant/components/influxdb/sensor.py b/homeassistant/components/influxdb/sensor.py
index 3bec7e3c657780..81a93cfc51dfdb 100644
--- a/homeassistant/components/influxdb/sensor.py
+++ b/homeassistant/components/influxdb/sensor.py
@@ -18,8 +18,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['influxdb==5.2.0']
-
 DEFAULT_HOST = 'localhost'
 DEFAULT_PORT = 8086
 DEFAULT_DATABASE = 'home_assistant'
diff --git a/homeassistant/components/insteon/__init__.py b/homeassistant/components/insteon/__init__.py
index a462ac0f63efe3..a1eea2fb1dfb90 100644
--- a/homeassistant/components/insteon/__init__.py
+++ b/homeassistant/components/insteon/__init__.py
@@ -13,8 +13,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['insteonplm==0.15.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'insteon'
diff --git a/homeassistant/components/insteon/binary_sensor.py b/homeassistant/components/insteon/binary_sensor.py
index 6f1e56756394f0..50e7a8fb6461bf 100644
--- a/homeassistant/components/insteon/binary_sensor.py
+++ b/homeassistant/components/insteon/binary_sensor.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['insteon']
-
 SENSOR_TYPES = {
     'openClosedSensor': 'opening',
     'ioLincSensor': 'opening',
diff --git a/homeassistant/components/insteon/cover.py b/homeassistant/components/insteon/cover.py
index 1bb316152a9db9..da339bb4b65a09 100644
--- a/homeassistant/components/insteon/cover.py
+++ b/homeassistant/components/insteon/cover.py
@@ -10,7 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['insteon']
 SUPPORTED_FEATURES = SUPPORT_OPEN | SUPPORT_CLOSE | SUPPORT_SET_POSITION
 
 
diff --git a/homeassistant/components/insteon/fan.py b/homeassistant/components/insteon/fan.py
index 26a56d6df98b3b..888fcfe959a9df 100644
--- a/homeassistant/components/insteon/fan.py
+++ b/homeassistant/components/insteon/fan.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['insteon']
-
 SPEED_TO_HEX = {
     SPEED_OFF: 0x00,
     SPEED_LOW: 0x3f,
diff --git a/homeassistant/components/insteon/light.py b/homeassistant/components/insteon/light.py
index 676c053325c65f..5103bedc6b6587 100644
--- a/homeassistant/components/insteon/light.py
+++ b/homeassistant/components/insteon/light.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['insteon']
-
 MAX_BRIGHTNESS = 255
 
 
diff --git a/homeassistant/components/insteon/sensor.py b/homeassistant/components/insteon/sensor.py
index edea87e1f738aa..a7c1c0b89efbfb 100644
--- a/homeassistant/components/insteon/sensor.py
+++ b/homeassistant/components/insteon/sensor.py
@@ -5,8 +5,6 @@
 
 from . import InsteonEntity
 
-DEPENDENCIES = ['insteon']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/insteon/switch.py b/homeassistant/components/insteon/switch.py
index 4fdcdb20bb2847..6c7b2b02031ced 100644
--- a/homeassistant/components/insteon/switch.py
+++ b/homeassistant/components/insteon/switch.py
@@ -5,8 +5,6 @@
 
 from . import InsteonEntity
 
-DEPENDENCIES = ['insteon']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/ios/__init__.py b/homeassistant/components/ios/__init__.py
index cc8bd62293a18b..a9395ed5f5d93f 100644
--- a/homeassistant/components/ios/__init__.py
+++ b/homeassistant/components/ios/__init__.py
@@ -17,8 +17,6 @@
 
 DOMAIN = 'ios'
 
-DEPENDENCIES = ['device_tracker', 'http', 'zeroconf']
-
 CONF_PUSH = 'push'
 CONF_PUSH_CATEGORIES = 'categories'
 CONF_PUSH_CATEGORIES_NAME = 'name'
diff --git a/homeassistant/components/ios/notify.py b/homeassistant/components/ios/notify.py
index 1f8aade4ec17a8..ecbbfb2056c26c 100644
--- a/homeassistant/components/ios/notify.py
+++ b/homeassistant/components/ios/notify.py
@@ -14,8 +14,6 @@
 
 PUSH_URL = "https://ios-push.home-assistant.io/push"
 
-DEPENDENCIES = ["ios"]
-
 
 # pylint: disable=invalid-name
 def log_rate_limits(hass, target, resp, level=20):
diff --git a/homeassistant/components/ios/sensor.py b/homeassistant/components/ios/sensor.py
index 404b313368cebe..5c5be2b262666a 100644
--- a/homeassistant/components/ios/sensor.py
+++ b/homeassistant/components/ios/sensor.py
@@ -3,8 +3,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.icon import icon_for_battery_level
 
-DEPENDENCIES = ['ios']
-
 SENSOR_TYPES = {
     'level': ['Battery Level', '%'],
     'state': ['Battery State', None]
diff --git a/homeassistant/components/iota/__init__.py b/homeassistant/components/iota/__init__.py
index e28de61aad0174..c3140e00b97aae 100644
--- a/homeassistant/components/iota/__init__.py
+++ b/homeassistant/components/iota/__init__.py
@@ -8,8 +8,6 @@
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pyota==2.0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_IRI = 'iri'
diff --git a/homeassistant/components/iota/sensor.py b/homeassistant/components/iota/sensor.py
index 2955828aff5a77..c278ab7288d06f 100644
--- a/homeassistant/components/iota/sensor.py
+++ b/homeassistant/components/iota/sensor.py
@@ -15,8 +15,6 @@
 CONF_SEED = 'seed'
 CONF_TESTNET = 'testnet'
 
-DEPENDENCIES = ['iota']
-
 SCAN_INTERVAL = timedelta(minutes=3)
 
 
diff --git a/homeassistant/components/iperf3/__init__.py b/homeassistant/components/iperf3/__init__.py
index 01ac2194f355e7..00a5738dbd61d8 100644
--- a/homeassistant/components/iperf3/__init__.py
+++ b/homeassistant/components/iperf3/__init__.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import async_track_time_interval
 
-REQUIREMENTS = ['iperf3==0.1.10']
-
 DOMAIN = 'iperf3'
 DATA_UPDATED = '{}_data_updated'.format(DOMAIN)
 
diff --git a/homeassistant/components/iperf3/sensor.py b/homeassistant/components/iperf3/sensor.py
index db9aafcdf4bb19..efc34d8bdef000 100644
--- a/homeassistant/components/iperf3/sensor.py
+++ b/homeassistant/components/iperf3/sensor.py
@@ -6,8 +6,6 @@
 
 from . import ATTR_VERSION, DATA_UPDATED, DOMAIN as IPERF3_DOMAIN, SENSOR_TYPES
 
-DEPENDENCIES = ['iperf3']
-
 ATTRIBUTION = 'Data retrieved using Iperf3'
 
 ICON = 'mdi:speedometer'
diff --git a/homeassistant/components/ipma/weather.py b/homeassistant/components/ipma/weather.py
index 7122957ad12d95..e976bcb9896a51 100644
--- a/homeassistant/components/ipma/weather.py
+++ b/homeassistant/components/ipma/weather.py
@@ -15,8 +15,6 @@
 from homeassistant.helpers import config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pyipma==1.2.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = 'Instituto Português do Mar e Atmosfera'
diff --git a/homeassistant/components/irish_rail_transport/sensor.py b/homeassistant/components/irish_rail_transport/sensor.py
index e17ecfde59da5b..586568ca9eff44 100644
--- a/homeassistant/components/irish_rail_transport/sensor.py
+++ b/homeassistant/components/irish_rail_transport/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.const import CONF_NAME, ATTR_ATTRIBUTION
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pyirishrail==0.0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_STATION = "Station"
diff --git a/homeassistant/components/islamic_prayer_times/sensor.py b/homeassistant/components/islamic_prayer_times/sensor.py
index 9efbc237e30a5e..c50c01c2eceec5 100644
--- a/homeassistant/components/islamic_prayer_times/sensor.py
+++ b/homeassistant/components/islamic_prayer_times/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import async_track_point_in_time
 
-REQUIREMENTS = ['prayer_times_calculator==0.0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 PRAYER_TIMES_ICON = 'mdi:calendar-clock'
diff --git a/homeassistant/components/iss/binary_sensor.py b/homeassistant/components/iss/binary_sensor.py
index 381bc16791826e..97e5087819ee3c 100644
--- a/homeassistant/components/iss/binary_sensor.py
+++ b/homeassistant/components/iss/binary_sensor.py
@@ -12,8 +12,6 @@
     CONF_NAME, ATTR_LONGITUDE, ATTR_LATITUDE, CONF_SHOW_ON_MAP)
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pyiss==1.0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ISS_NEXT_RISE = 'next_rise'
diff --git a/homeassistant/components/isy994/__init__.py b/homeassistant/components/isy994/__init__.py
index 4eaa71deececa5..de5e09f6238726 100644
--- a/homeassistant/components/isy994/__init__.py
+++ b/homeassistant/components/isy994/__init__.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.typing import ConfigType, Dict
 
-REQUIREMENTS = ['PyISY==1.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'isy994'
diff --git a/homeassistant/components/itach/remote.py b/homeassistant/components/itach/remote.py
index beb773838fb17d..54dfa1fcfb92f8 100644
--- a/homeassistant/components/itach/remote.py
+++ b/homeassistant/components/itach/remote.py
@@ -10,8 +10,6 @@
     CONF_DEVICES)
 from homeassistant.components.remote import PLATFORM_SCHEMA
 
-REQUIREMENTS = ['pyitachip2ir==0.0.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_PORT = 4998
diff --git a/homeassistant/components/jewish_calendar/sensor.py b/homeassistant/components/jewish_calendar/sensor.py
index 478bbed98fa6c7..ec86abecc4413d 100644
--- a/homeassistant/components/jewish_calendar/sensor.py
+++ b/homeassistant/components/jewish_calendar/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.sun import get_astral_event_date
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['hdate==0.8.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 SENSOR_TYPES = {
diff --git a/homeassistant/components/joaoapps_join/__init__.py b/homeassistant/components/joaoapps_join/__init__.py
index f1371deed2bdf5..4a3cf737c96ff9 100644
--- a/homeassistant/components/joaoapps_join/__init__.py
+++ b/homeassistant/components/joaoapps_join/__init__.py
@@ -6,8 +6,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.const import CONF_NAME, CONF_API_KEY
 
-REQUIREMENTS = ['python-join-api==0.0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'joaoapps_join'
diff --git a/homeassistant/components/joaoapps_join/notify.py b/homeassistant/components/joaoapps_join/notify.py
index 0137520049d423..d9eabce5476f5d 100644
--- a/homeassistant/components/joaoapps_join/notify.py
+++ b/homeassistant/components/joaoapps_join/notify.py
@@ -7,8 +7,6 @@
 from homeassistant.const import CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-join-api==0.0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DEVICE_ID = 'device_id'
diff --git a/homeassistant/components/juicenet/__init__.py b/homeassistant/components/juicenet/__init__.py
index f62331d1502ea0..919322487b161c 100644
--- a/homeassistant/components/juicenet/__init__.py
+++ b/homeassistant/components/juicenet/__init__.py
@@ -8,8 +8,6 @@
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-juicenet==0.0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'juicenet'
diff --git a/homeassistant/components/juicenet/sensor.py b/homeassistant/components/juicenet/sensor.py
index 6b55e539547d24..60369b1f92a732 100644
--- a/homeassistant/components/juicenet/sensor.py
+++ b/homeassistant/components/juicenet/sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['juicenet']
-
 SENSOR_TYPES = {
     'status': ['Charging Status', None],
     'temperature': ['Temperature', TEMP_CELSIUS],
diff --git a/homeassistant/components/keenetic_ndms2/device_tracker.py b/homeassistant/components/keenetic_ndms2/device_tracker.py
index f873507112dc62..e52dff7476dfab 100644
--- a/homeassistant/components/keenetic_ndms2/device_tracker.py
+++ b/homeassistant/components/keenetic_ndms2/device_tracker.py
@@ -10,8 +10,6 @@
     CONF_HOST, CONF_PORT, CONF_PASSWORD, CONF_USERNAME
 )
 
-REQUIREMENTS = ['ndms2_client==0.0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 # Interface name to track devices for. Most likely one will not need to
diff --git a/homeassistant/components/keyboard/__init__.py b/homeassistant/components/keyboard/__init__.py
index 44accca2f56a7e..f841e7e9681974 100644
--- a/homeassistant/components/keyboard/__init__.py
+++ b/homeassistant/components/keyboard/__init__.py
@@ -6,8 +6,6 @@
     SERVICE_MEDIA_PREVIOUS_TRACK, SERVICE_VOLUME_DOWN, SERVICE_VOLUME_MUTE,
     SERVICE_VOLUME_UP)
 
-REQUIREMENTS = ['pyuserinput==0.1.11']
-
 DOMAIN = 'keyboard'
 
 TAP_KEY_SCHEMA = vol.Schema({})
diff --git a/homeassistant/components/keyboard_remote/__init__.py b/homeassistant/components/keyboard_remote/__init__.py
index e786fe458a8460..71df70f51f0a96 100644
--- a/homeassistant/components/keyboard_remote/__init__.py
+++ b/homeassistant/components/keyboard_remote/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-REQUIREMENTS = ['evdev==0.6.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEVICE_DESCRIPTOR = 'device_descriptor'
diff --git a/homeassistant/components/kira/__init__.py b/homeassistant/components/kira/__init__.py
index d60d8e0cfeb10a..7cf27d342f51c9 100644
--- a/homeassistant/components/kira/__init__.py
+++ b/homeassistant/components/kira/__init__.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pykira==0.1.1']
-
 DOMAIN = 'kira'
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/kiwi/lock.py b/homeassistant/components/kiwi/lock.py
index 0b5806425d95a7..bbeb2dce04a772 100644
--- a/homeassistant/components/kiwi/lock.py
+++ b/homeassistant/components/kiwi/lock.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.event import async_call_later
 from homeassistant.core import callback
 
-REQUIREMENTS = ['kiwiki-client==0.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_TYPE = 'hardware_type'
diff --git a/homeassistant/components/knx/__init__.py b/homeassistant/components/knx/__init__.py
index ea5b18b7ede91a..04b51730be1ca4 100644
--- a/homeassistant/components/knx/__init__.py
+++ b/homeassistant/components/knx/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.event import async_track_state_change
 from homeassistant.helpers.script import Script
 
-REQUIREMENTS = ['xknx==0.10.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = "knx"
diff --git a/homeassistant/components/knx/binary_sensor.py b/homeassistant/components/knx/binary_sensor.py
index 8ee21e24c5e978..65d10722500fc7 100644
--- a/homeassistant/components/knx/binary_sensor.py
+++ b/homeassistant/components/knx/binary_sensor.py
@@ -22,8 +22,6 @@
 CONF__ACTION = 'turn_off_action'
 
 DEFAULT_NAME = 'KNX Binary Sensor'
-DEPENDENCIES = ['knx']
-
 AUTOMATION_SCHEMA = vol.Schema({
     vol.Optional(CONF_HOOK, default=CONF_DEFAULT_HOOK): cv.string,
     vol.Optional(CONF_COUNTER, default=CONF_DEFAULT_COUNTER): cv.port,
diff --git a/homeassistant/components/knx/climate.py b/homeassistant/components/knx/climate.py
index e11e5449326bf5..f4835389dfa043 100644
--- a/homeassistant/components/knx/climate.py
+++ b/homeassistant/components/knx/climate.py
@@ -39,8 +39,6 @@
 DEFAULT_SETPOINT_SHIFT_STEP = 0.5
 DEFAULT_SETPOINT_SHIFT_MAX = 6
 DEFAULT_SETPOINT_SHIFT_MIN = -6
-DEPENDENCIES = ['knx']
-
 # Map KNX operation modes to HA modes. This list might not be full.
 OPERATION_MODES = {
     # Map DPT 201.100 HVAC operating modes
diff --git a/homeassistant/components/knx/cover.py b/homeassistant/components/knx/cover.py
index b2b287d1e87d23..bbee54e00cd95f 100644
--- a/homeassistant/components/knx/cover.py
+++ b/homeassistant/components/knx/cover.py
@@ -25,8 +25,6 @@
 
 DEFAULT_TRAVEL_TIME = 25
 DEFAULT_NAME = 'KNX Cover'
-DEPENDENCIES = ['knx']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
     vol.Optional(CONF_MOVE_LONG_ADDRESS): cv.string,
diff --git a/homeassistant/components/knx/light.py b/homeassistant/components/knx/light.py
index cf59f1fc135b3b..b94d91514af40e 100644
--- a/homeassistant/components/knx/light.py
+++ b/homeassistant/components/knx/light.py
@@ -30,7 +30,6 @@
 DEFAULT_COLOR_TEMP_MODE = 'absolute'
 DEFAULT_MIN_KELVIN = 2700  # 370 mireds
 DEFAULT_MAX_KELVIN = 6000  # 166 mireds
-DEPENDENCIES = ['knx']
 
 
 class ColorTempModes(Enum):
diff --git a/homeassistant/components/knx/notify.py b/homeassistant/components/knx/notify.py
index 742252d187426f..486908c3cffd90 100644
--- a/homeassistant/components/knx/notify.py
+++ b/homeassistant/components/knx/notify.py
@@ -11,8 +11,6 @@
 
 DEFAULT_NAME = 'KNX Notify'
 
-DEPENDENCIES = ['knx']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADDRESS): cv.string,
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string
diff --git a/homeassistant/components/knx/scene.py b/homeassistant/components/knx/scene.py
index 4bf186c28ff7d4..4f0c7b2d4fcc4d 100644
--- a/homeassistant/components/knx/scene.py
+++ b/homeassistant/components/knx/scene.py
@@ -11,8 +11,6 @@
 CONF_SCENE_NUMBER = 'scene_number'
 
 DEFAULT_NAME = 'KNX SCENE'
-DEPENDENCIES = ['knx']
-
 PLATFORM_SCHEMA = vol.Schema({
     vol.Required(CONF_PLATFORM): 'knx',
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
diff --git a/homeassistant/components/knx/sensor.py b/homeassistant/components/knx/sensor.py
index 7ddafe53be44b0..bb3128eaee7821 100644
--- a/homeassistant/components/knx/sensor.py
+++ b/homeassistant/components/knx/sensor.py
@@ -10,8 +10,6 @@
 from . import ATTR_DISCOVER_DEVICES, DATA_KNX
 
 DEFAULT_NAME = 'KNX Sensor'
-DEPENDENCIES = ['knx']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADDRESS): cv.string,
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
diff --git a/homeassistant/components/knx/switch.py b/homeassistant/components/knx/switch.py
index e3beff39677954..461b27e94c0d54 100644
--- a/homeassistant/components/knx/switch.py
+++ b/homeassistant/components/knx/switch.py
@@ -11,8 +11,6 @@
 CONF_STATE_ADDRESS = 'state_address'
 
 DEFAULT_NAME = 'KNX Switch'
-DEPENDENCIES = ['knx']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADDRESS): cv.string,
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
diff --git a/homeassistant/components/kodi/media_player.py b/homeassistant/components/kodi/media_player.py
index 81c93dba2ac417..96fb02a08a0395 100644
--- a/homeassistant/components/kodi/media_player.py
+++ b/homeassistant/components/kodi/media_player.py
@@ -31,8 +31,6 @@
 from homeassistant.util.yaml import dump
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['jsonrpc-async==0.6', 'jsonrpc-websocket==0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 EVENT_KODI_CALL_METHOD_RESULT = 'kodi_call_method_result'
diff --git a/homeassistant/components/kodi/notify.py b/homeassistant/components/kodi/notify.py
index f6ee2c47b96b7c..fb5326c83c8fd4 100644
--- a/homeassistant/components/kodi/notify.py
+++ b/homeassistant/components/kodi/notify.py
@@ -14,8 +14,6 @@
     ATTR_DATA, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
     BaseNotificationService)
 
-REQUIREMENTS = ['jsonrpc-async==0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_PORT = 8080
diff --git a/homeassistant/components/konnected/__init__.py b/homeassistant/components/konnected/__init__.py
index 276e395817c0d5..ee4ba16e54c33e 100644
--- a/homeassistant/components/konnected/__init__.py
+++ b/homeassistant/components/konnected/__init__.py
@@ -32,8 +32,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['konnected==0.1.5']
-
 _BINARY_SENSOR_SCHEMA = vol.All(
     vol.Schema({
         vol.Exclusive(CONF_PIN, 's_pin'): vol.Any(*PIN_TO_ZONE),
@@ -96,8 +94,6 @@
     extra=vol.ALLOW_EXTRA,
 )
 
-DEPENDENCIES = ['http']
-
 
 async def async_setup(hass, config):
     """Set up the Konnected platform."""
diff --git a/homeassistant/components/konnected/binary_sensor.py b/homeassistant/components/konnected/binary_sensor.py
index 1fbfbea1861c25..3abd9be6c4b79b 100644
--- a/homeassistant/components/konnected/binary_sensor.py
+++ b/homeassistant/components/konnected/binary_sensor.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['konnected']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/konnected/sensor.py b/homeassistant/components/konnected/sensor.py
index a48d1a58619600..7881eacff40f5b 100644
--- a/homeassistant/components/konnected/sensor.py
+++ b/homeassistant/components/konnected/sensor.py
@@ -13,8 +13,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['konnected']
-
 SENSOR_TYPES = {
     DEVICE_CLASS_TEMPERATURE: ['Temperature', TEMP_CELSIUS],
     DEVICE_CLASS_HUMIDITY: ['Humidity', '%']
diff --git a/homeassistant/components/konnected/switch.py b/homeassistant/components/konnected/switch.py
index 3db602215b968d..841e84e2487edd 100644
--- a/homeassistant/components/konnected/switch.py
+++ b/homeassistant/components/konnected/switch.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['konnected']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/kwb/sensor.py b/homeassistant/components/kwb/sensor.py
index bad0ea3cdede51..7a153970d189c2 100644
--- a/homeassistant/components/kwb/sensor.py
+++ b/homeassistant/components/kwb/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pykwb==0.0.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_RAW = False
diff --git a/homeassistant/components/lacrosse/sensor.py b/homeassistant/components/lacrosse/sensor.py
index 9240343a5e3e69..dea51b0c9173e9 100644
--- a/homeassistant/components/lacrosse/sensor.py
+++ b/homeassistant/components/lacrosse/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.util import dt as dt_util
 
-REQUIREMENTS = ['pylacrosse==0.3.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_BAUD = 'baud'
diff --git a/homeassistant/components/lametric/__init__.py b/homeassistant/components/lametric/__init__.py
index 0c3c8b08dd732e..057594f42aed75 100644
--- a/homeassistant/components/lametric/__init__.py
+++ b/homeassistant/components/lametric/__init__.py
@@ -5,8 +5,6 @@
 
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['lmnotify==0.0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CLIENT_ID = 'client_id'
diff --git a/homeassistant/components/lametric/notify.py b/homeassistant/components/lametric/notify.py
index 358bb056b00e33..92b254cd2b01d2 100644
--- a/homeassistant/components/lametric/notify.py
+++ b/homeassistant/components/lametric/notify.py
@@ -11,8 +11,6 @@
 
 from . import DOMAIN as LAMETRIC_DOMAIN
 
-REQUIREMENTS = ['lmnotify==0.0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 AVAILABLE_PRIORITIES = ['info', 'warning', 'critical']
@@ -21,8 +19,6 @@
 CONF_LIFETIME = 'lifetime'
 CONF_PRIORITY = 'priority'
 
-DEPENDENCIES = ['lametric']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_ICON, default='a7956'): cv.string,
     vol.Optional(CONF_LIFETIME, default=10): cv.positive_int,
diff --git a/homeassistant/components/lastfm/sensor.py b/homeassistant/components/lastfm/sensor.py
index e4e28eff4f1819..32774b1bf284bd 100644
--- a/homeassistant/components/lastfm/sensor.py
+++ b/homeassistant/components/lastfm/sensor.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pylast==3.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_LAST_PLAYED = 'last_played'
diff --git a/homeassistant/components/launch_library/sensor.py b/homeassistant/components/launch_library/sensor.py
index 4b42ddba268b0b..a1c5b5825a9b39 100644
--- a/homeassistant/components/launch_library/sensor.py
+++ b/homeassistant/components/launch_library/sensor.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-REQUIREMENTS = ['pylaunches==0.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by Launch Library."
diff --git a/homeassistant/components/lcn/__init__.py b/homeassistant/components/lcn/__init__.py
index 44f69c261b9c88..418b6ffa89df0c 100644
--- a/homeassistant/components/lcn/__init__.py
+++ b/homeassistant/components/lcn/__init__.py
@@ -20,8 +20,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pypck==0.5.9']
-
 
 def has_unique_connection_names(connections):
     """Validate that all connection names are unique.
diff --git a/homeassistant/components/lcn/binary_sensor.py b/homeassistant/components/lcn/binary_sensor.py
index 0ffa2e50d8b21d..ec37d3e5128ffc 100755
--- a/homeassistant/components/lcn/binary_sensor.py
+++ b/homeassistant/components/lcn/binary_sensor.py
@@ -6,8 +6,6 @@
 from .const import (
     BINSENSOR_PORTS, CONF_CONNECTIONS, CONF_SOURCE, DATA_LCN, SETPOINTS)
 
-DEPENDENCIES = ['lcn']
-
 
 async def async_setup_platform(hass, hass_config, async_add_entities,
                                discovery_info=None):
diff --git a/homeassistant/components/lcn/cover.py b/homeassistant/components/lcn/cover.py
index a32ff7c23f4605..7123f2d5d0a579 100755
--- a/homeassistant/components/lcn/cover.py
+++ b/homeassistant/components/lcn/cover.py
@@ -5,8 +5,6 @@
 from . import LcnDevice, get_connection
 from .const import CONF_CONNECTIONS, CONF_MOTOR, DATA_LCN
 
-DEPENDENCIES = ['lcn']
-
 
 async def async_setup_platform(hass, hass_config, async_add_entities,
                                discovery_info=None):
diff --git a/homeassistant/components/lcn/light.py b/homeassistant/components/lcn/light.py
index 00b78259354e51..653873ba78a373 100644
--- a/homeassistant/components/lcn/light.py
+++ b/homeassistant/components/lcn/light.py
@@ -9,8 +9,6 @@
     CONF_CONNECTIONS, CONF_DIMMABLE, CONF_OUTPUT, CONF_TRANSITION, DATA_LCN,
     OUTPUT_PORTS)
 
-DEPENDENCIES = ['lcn']
-
 
 async def async_setup_platform(
         hass, hass_config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/lcn/sensor.py b/homeassistant/components/lcn/sensor.py
index 5e50d092ada05d..48ac8c7266c40d 100755
--- a/homeassistant/components/lcn/sensor.py
+++ b/homeassistant/components/lcn/sensor.py
@@ -6,8 +6,6 @@
     CONF_CONNECTIONS, CONF_SOURCE, DATA_LCN, LED_PORTS, S0_INPUTS, SETPOINTS,
     THRESHOLDS, VARIABLES)
 
-DEPENDENCIES = ['lcn']
-
 
 async def async_setup_platform(hass, hass_config, async_add_entities,
                                discovery_info=None):
diff --git a/homeassistant/components/lcn/switch.py b/homeassistant/components/lcn/switch.py
index 7c375f4a598c79..48ae579fbcd7c3 100755
--- a/homeassistant/components/lcn/switch.py
+++ b/homeassistant/components/lcn/switch.py
@@ -5,8 +5,6 @@
 from . import LcnDevice, get_connection
 from .const import CONF_CONNECTIONS, CONF_OUTPUT, DATA_LCN, OUTPUT_PORTS
 
-DEPENDENCIES = ['lcn']
-
 
 async def async_setup_platform(hass, hass_config, async_add_entities,
                                discovery_info=None):
diff --git a/homeassistant/components/lg_netcast/media_player.py b/homeassistant/components/lg_netcast/media_player.py
index 12fee5fae96eda..da5946de1ef45f 100644
--- a/homeassistant/components/lg_netcast/media_player.py
+++ b/homeassistant/components/lg_netcast/media_player.py
@@ -17,8 +17,6 @@
     STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pylgnetcast-homeassistant==0.2.0.dev0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'LG TV Remote'
diff --git a/homeassistant/components/lg_soundbar/media_player.py b/homeassistant/components/lg_soundbar/media_player.py
index 2e2481a462b5a9..938b4e437c16c0 100644
--- a/homeassistant/components/lg_soundbar/media_player.py
+++ b/homeassistant/components/lg_soundbar/media_player.py
@@ -9,8 +9,6 @@
 
 from homeassistant.const import STATE_ON
 
-REQUIREMENTS = ['temescal==0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_LG = SUPPORT_VOLUME_SET | SUPPORT_VOLUME_MUTE | SUPPORT_SELECT_SOURCE \
diff --git a/homeassistant/components/lifx/__init__.py b/homeassistant/components/lifx/__init__.py
index 82802bab4af75c..849fecad487db6 100644
--- a/homeassistant/components/lifx/__init__.py
+++ b/homeassistant/components/lifx/__init__.py
@@ -8,8 +8,6 @@
 from homeassistant.components.light import DOMAIN as LIGHT_DOMAIN
 
 DOMAIN = 'lifx'
-REQUIREMENTS = ['aiolifx==0.6.7']
-
 CONF_SERVER = 'server'
 CONF_BROADCAST = 'broadcast'
 
diff --git a/homeassistant/components/lifx/light.py b/homeassistant/components/lifx/light.py
index 014ca9ae6c80b5..04f756e6dede3f 100644
--- a/homeassistant/components/lifx/light.py
+++ b/homeassistant/components/lifx/light.py
@@ -30,9 +30,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['lifx']
-REQUIREMENTS = ['aiolifx_effects==0.2.1']
-
 SCAN_INTERVAL = timedelta(seconds=10)
 
 DISCOVERY_INTERVAL = 60
diff --git a/homeassistant/components/lifx_legacy/light.py b/homeassistant/components/lifx_legacy/light.py
index 6c5f68937f88a5..a31b875f21e4e3 100644
--- a/homeassistant/components/lifx_legacy/light.py
+++ b/homeassistant/components/lifx_legacy/light.py
@@ -22,8 +22,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['liffylights==0.9.4']
-
 BYTE_MAX = 255
 
 CONF_BROADCAST = 'broadcast'
diff --git a/homeassistant/components/light/__init__.py b/homeassistant/components/light/__init__.py
index db2e9ce0197b50..f9ce6eb05d4158 100644
--- a/homeassistant/components/light/__init__.py
+++ b/homeassistant/components/light/__init__.py
@@ -24,7 +24,6 @@
 import homeassistant.util.color as color_util
 
 DOMAIN = 'light'
-DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=30)
 
 GROUP_NAME_ALL_LIGHTS = 'all lights'
diff --git a/homeassistant/components/lightwave/__init__.py b/homeassistant/components/lightwave/__init__.py
index f6e11352265dcf..2337c582b2d083 100644
--- a/homeassistant/components/lightwave/__init__.py
+++ b/homeassistant/components/lightwave/__init__.py
@@ -5,8 +5,6 @@
                                  CONF_SWITCHES)
 from homeassistant.helpers.discovery import async_load_platform
 
-REQUIREMENTS = ['lightwave==0.15']
-
 LIGHTWAVE_LINK = 'lightwave_link'
 
 DOMAIN = 'lightwave'
diff --git a/homeassistant/components/lightwave/light.py b/homeassistant/components/lightwave/light.py
index f22533d2548dca..68c94300317e73 100644
--- a/homeassistant/components/lightwave/light.py
+++ b/homeassistant/components/lightwave/light.py
@@ -5,8 +5,6 @@
 
 from . import LIGHTWAVE_LINK
 
-DEPENDENCIES = ['lightwave']
-
 MAX_BRIGHTNESS = 255
 
 
diff --git a/homeassistant/components/lightwave/switch.py b/homeassistant/components/lightwave/switch.py
index dfa93b4b151844..0d7e2cd382558a 100644
--- a/homeassistant/components/lightwave/switch.py
+++ b/homeassistant/components/lightwave/switch.py
@@ -4,8 +4,6 @@
 
 from . import LIGHTWAVE_LINK
 
-DEPENDENCIES = ['lightwave']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/limitlessled/light.py b/homeassistant/components/limitlessled/light.py
index 4f187afa1d75df..fa12bc76de5355 100644
--- a/homeassistant/components/limitlessled/light.py
+++ b/homeassistant/components/limitlessled/light.py
@@ -15,8 +15,6 @@
     color_temperature_mired_to_kelvin, color_hs_to_RGB)
 from homeassistant.helpers.restore_state import RestoreEntity
 
-REQUIREMENTS = ['limitlessled==1.1.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_BRIDGES = 'bridges'
diff --git a/homeassistant/components/linksys_ap/device_tracker.py b/homeassistant/components/linksys_ap/device_tracker.py
index 46cc78d4e4ae36..3871d5beda9a1a 100644
--- a/homeassistant/components/linksys_ap/device_tracker.py
+++ b/homeassistant/components/linksys_ap/device_tracker.py
@@ -14,8 +14,6 @@
 INTERFACES = 2
 DEFAULT_TIMEOUT = 10
 
-REQUIREMENTS = ['beautifulsoup4==4.7.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/linky/sensor.py b/homeassistant/components/linky/sensor.py
index 35f85f15ed6332..63f7aaf5423382 100644
--- a/homeassistant/components/linky/sensor.py
+++ b/homeassistant/components/linky/sensor.py
@@ -12,7 +12,6 @@
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pylinky==0.3.3']
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(minutes=10)
diff --git a/homeassistant/components/linode/__init__.py b/homeassistant/components/linode/__init__.py
index 8bbd98c0acf778..f9270d95c078a7 100644
--- a/homeassistant/components/linode/__init__.py
+++ b/homeassistant/components/linode/__init__.py
@@ -8,8 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['linode-api==4.1.9b1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CREATED = 'created'
diff --git a/homeassistant/components/linode/binary_sensor.py b/homeassistant/components/linode/binary_sensor.py
index 19455917dbb28b..69079b3e63ab8b 100644
--- a/homeassistant/components/linode/binary_sensor.py
+++ b/homeassistant/components/linode/binary_sensor.py
@@ -16,8 +16,6 @@
 
 DEFAULT_NAME = 'Node'
 DEFAULT_DEVICE_CLASS = 'moving'
-DEPENDENCIES = ['linode']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_NODES): vol.All(cv.ensure_list, [cv.string]),
 })
diff --git a/homeassistant/components/linode/switch.py b/homeassistant/components/linode/switch.py
index e5f97ef756e403..6787d84937f67a 100644
--- a/homeassistant/components/linode/switch.py
+++ b/homeassistant/components/linode/switch.py
@@ -13,8 +13,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['linode']
-
 DEFAULT_NAME = 'Node'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/linux_battery/sensor.py b/homeassistant/components/linux_battery/sensor.py
index 7164315de8ea42..87061174d2d270 100644
--- a/homeassistant/components/linux_battery/sensor.py
+++ b/homeassistant/components/linux_battery/sensor.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['batinfo==0.4.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_PATH = 'path'
diff --git a/homeassistant/components/lirc/__init__.py b/homeassistant/components/lirc/__init__.py
index 0f00eda20072c0..c3077cf6f44401 100644
--- a/homeassistant/components/lirc/__init__.py
+++ b/homeassistant/components/lirc/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_STOP, EVENT_HOMEASSISTANT_START)
 
-REQUIREMENTS = ['python-lirc==1.2.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 BUTTON_NAME = 'button_name'
diff --git a/homeassistant/components/litejet/__init__.py b/homeassistant/components/litejet/__init__.py
index b4e8e45fa0b742..d8e02b51870881 100644
--- a/homeassistant/components/litejet/__init__.py
+++ b/homeassistant/components/litejet/__init__.py
@@ -7,8 +7,6 @@
 from homeassistant.helpers import discovery
 from homeassistant.const import CONF_PORT
 
-REQUIREMENTS = ['pylitejet==0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_EXCLUDE_NAMES = 'exclude_names'
diff --git a/homeassistant/components/litejet/light.py b/homeassistant/components/litejet/light.py
index e52e50ed21a858..b87d77ebe7c086 100644
--- a/homeassistant/components/litejet/light.py
+++ b/homeassistant/components/litejet/light.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['litejet']
-
 ATTR_NUMBER = 'number'
 
 
diff --git a/homeassistant/components/litejet/scene.py b/homeassistant/components/litejet/scene.py
index 2563c9ceb0c480..c347140a6bdf6e 100644
--- a/homeassistant/components/litejet/scene.py
+++ b/homeassistant/components/litejet/scene.py
@@ -4,8 +4,6 @@
 from homeassistant.components import litejet
 from homeassistant.components.scene import Scene
 
-DEPENDENCIES = ['litejet']
-
 ATTR_NUMBER = 'number'
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/litejet/switch.py b/homeassistant/components/litejet/switch.py
index 9972dcb9f44797..7e3059dacd66fd 100644
--- a/homeassistant/components/litejet/switch.py
+++ b/homeassistant/components/litejet/switch.py
@@ -4,8 +4,6 @@
 from homeassistant.components import litejet
 from homeassistant.components.switch import SwitchDevice
 
-DEPENDENCIES = ['litejet']
-
 ATTR_NUMBER = 'number'
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/liveboxplaytv/media_player.py b/homeassistant/components/liveboxplaytv/media_player.py
index 1ee9931d233c0d..05ceb68cc94e3c 100644
--- a/homeassistant/components/liveboxplaytv/media_player.py
+++ b/homeassistant/components/liveboxplaytv/media_player.py
@@ -18,8 +18,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['liveboxplaytv==2.0.2', 'pyteleloisirs==3.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Livebox Play TV'
diff --git a/homeassistant/components/locative/__init__.py b/homeassistant/components/locative/__init__.py
index 335ae4cfe1eae9..f21c55af28ad4a 100644
--- a/homeassistant/components/locative/__init__.py
+++ b/homeassistant/components/locative/__init__.py
@@ -16,8 +16,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'locative'
-DEPENDENCIES = ['webhook']
-
 TRACKER_UPDATE = '{}_tracker_update'.format(DOMAIN)
 
 
diff --git a/homeassistant/components/locative/device_tracker.py b/homeassistant/components/locative/device_tracker.py
index 51135f4e21a941..1e16bde58ad485 100644
--- a/homeassistant/components/locative/device_tracker.py
+++ b/homeassistant/components/locative/device_tracker.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['locative']
-
 DATA_KEY = '{}.{}'.format(LOCATIVE_DOMAIN, DEVICE_TRACKER_DOMAIN)
 
 
diff --git a/homeassistant/components/lock/__init__.py b/homeassistant/components/lock/__init__.py
index fe5286ba813daf..598de7961a51f8 100644
--- a/homeassistant/components/lock/__init__.py
+++ b/homeassistant/components/lock/__init__.py
@@ -19,7 +19,6 @@
 ATTR_CHANGED_BY = 'changed_by'
 
 DOMAIN = 'lock'
-DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=30)
 
 ENTITY_ID_ALL_LOCKS = group.ENTITY_ID_FORMAT.format('all_locks')
diff --git a/homeassistant/components/logbook/__init__.py b/homeassistant/components/logbook/__init__.py
index 7a0fb5e2654b3a..70fe31e64d6808 100644
--- a/homeassistant/components/logbook/__init__.py
+++ b/homeassistant/components/logbook/__init__.py
@@ -31,8 +31,6 @@
 CONF_ENTITIES = 'entities'
 CONTINUOUS_DOMAINS = ['proximity', 'sensor']
 
-DEPENDENCIES = ['recorder', 'frontend']
-
 DOMAIN = 'logbook'
 
 GROUP_BY_MINUTES = 15
diff --git a/homeassistant/components/logi_circle/__init__.py b/homeassistant/components/logi_circle/__init__.py
index 433895293f441d..1b74a9df03b3b0 100644
--- a/homeassistant/components/logi_circle/__init__.py
+++ b/homeassistant/components/logi_circle/__init__.py
@@ -20,8 +20,6 @@
     RECORDING_MODE_KEY, SIGNAL_LOGI_CIRCLE_RECONFIGURE,
     SIGNAL_LOGI_CIRCLE_RECORD, SIGNAL_LOGI_CIRCLE_SNAPSHOT)
 
-REQUIREMENTS = ['logi_circle==0.2.2']
-
 NOTIFICATION_ID = 'logi_circle_notification'
 NOTIFICATION_TITLE = 'Logi Circle Setup'
 
diff --git a/homeassistant/components/logi_circle/camera.py b/homeassistant/components/logi_circle/camera.py
index b69f23ac19dc7e..09baaa5ba0b3e8 100644
--- a/homeassistant/components/logi_circle/camera.py
+++ b/homeassistant/components/logi_circle/camera.py
@@ -15,8 +15,6 @@
     RECORDING_MODE_KEY, SIGNAL_LOGI_CIRCLE_RECONFIGURE,
     SIGNAL_LOGI_CIRCLE_RECORD, SIGNAL_LOGI_CIRCLE_SNAPSHOT)
 
-DEPENDENCIES = ['logi_circle', 'ffmpeg']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=60)
diff --git a/homeassistant/components/logi_circle/sensor.py b/homeassistant/components/logi_circle/sensor.py
index 01d5492eea7ce7..6efd5065ba6baa 100644
--- a/homeassistant/components/logi_circle/sensor.py
+++ b/homeassistant/components/logi_circle/sensor.py
@@ -11,8 +11,6 @@
 from .const import (
     ATTRIBUTION, DOMAIN as LOGI_CIRCLE_DOMAIN, LOGI_SENSORS as SENSOR_TYPES)
 
-DEPENDENCIES = ['logi_circle']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/london_underground/sensor.py b/homeassistant/components/london_underground/sensor.py
index c2502e2ab2be60..9bee85697928db 100644
--- a/homeassistant/components/london_underground/sensor.py
+++ b/homeassistant/components/london_underground/sensor.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['london-tube-status==0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Powered by TfL Open Data"
diff --git a/homeassistant/components/loopenergy/sensor.py b/homeassistant/components/loopenergy/sensor.py
index 23bdf48f64506d..b2afc36b8f5f3b 100644
--- a/homeassistant/components/loopenergy/sensor.py
+++ b/homeassistant/components/loopenergy/sensor.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pyloopenergy==0.1.2']
-
 CONF_ELEC = 'electricity'
 CONF_GAS = 'gas'
 
diff --git a/homeassistant/components/luci/device_tracker.py b/homeassistant/components/luci/device_tracker.py
index 77273d89d42033..4068be840c895a 100644
--- a/homeassistant/components/luci/device_tracker.py
+++ b/homeassistant/components/luci/device_tracker.py
@@ -9,8 +9,6 @@
     CONF_HOST, CONF_PASSWORD, CONF_SSL, CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['openwrt-luci-rpc==1.0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_SSL = False
diff --git a/homeassistant/components/luftdaten/__init__.py b/homeassistant/components/luftdaten/__init__.py
index 125cefb90265d6..81b177f734ae34 100644
--- a/homeassistant/components/luftdaten/__init__.py
+++ b/homeassistant/components/luftdaten/__init__.py
@@ -17,8 +17,6 @@
 from .config_flow import configured_sensors, duplicate_stations
 from .const import CONF_SENSOR_ID, DEFAULT_SCAN_INTERVAL, DOMAIN
 
-REQUIREMENTS = ['luftdaten==0.3.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_LUFTDATEN = 'luftdaten'
diff --git a/homeassistant/components/luftdaten/sensor.py b/homeassistant/components/luftdaten/sensor.py
index 107673bac45214..ca68075df5d69c 100644
--- a/homeassistant/components/luftdaten/sensor.py
+++ b/homeassistant/components/luftdaten/sensor.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['luftdaten']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/lupusec/__init__.py b/homeassistant/components/lupusec/__init__.py
index 8a5f098f741929..e97344f3082d11 100644
--- a/homeassistant/components/lupusec/__init__.py
+++ b/homeassistant/components/lupusec/__init__.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['lupupy==0.0.17']
-
 DOMAIN = 'lupusec'
 
 NOTIFICATION_ID = 'lupusec_notification'
diff --git a/homeassistant/components/lupusec/alarm_control_panel.py b/homeassistant/components/lupusec/alarm_control_panel.py
index 0a88f3bd552fc4..9f3e7263396503 100644
--- a/homeassistant/components/lupusec/alarm_control_panel.py
+++ b/homeassistant/components/lupusec/alarm_control_panel.py
@@ -8,8 +8,6 @@
 
 from . import DOMAIN as LUPUSEC_DOMAIN, LupusecDevice
 
-DEPENDENCIES = ['lupusec']
-
 ICON = 'mdi:security'
 
 SCAN_INTERVAL = timedelta(seconds=2)
diff --git a/homeassistant/components/lupusec/binary_sensor.py b/homeassistant/components/lupusec/binary_sensor.py
index 2c3f5e0e0b86e0..28833b3d246e2f 100644
--- a/homeassistant/components/lupusec/binary_sensor.py
+++ b/homeassistant/components/lupusec/binary_sensor.py
@@ -7,8 +7,6 @@
 
 from . import DOMAIN as LUPUSEC_DOMAIN, LupusecDevice
 
-DEPENDENCIES = ['lupusec']
-
 SCAN_INTERVAL = timedelta(seconds=2)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/lupusec/switch.py b/homeassistant/components/lupusec/switch.py
index 0d86ea0a3650bf..b6391959397a07 100644
--- a/homeassistant/components/lupusec/switch.py
+++ b/homeassistant/components/lupusec/switch.py
@@ -6,8 +6,6 @@
 
 from . import DOMAIN as LUPUSEC_DOMAIN, LupusecDevice
 
-DEPENDENCIES = ['lupusec']
-
 SCAN_INTERVAL = timedelta(seconds=2)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/lutron/__init__.py b/homeassistant/components/lutron/__init__.py
index f642e96d8f6433..c91103f22446df 100644
--- a/homeassistant/components/lutron/__init__.py
+++ b/homeassistant/components/lutron/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import slugify
 
-REQUIREMENTS = ['pylutron==0.2.0']
-
 DOMAIN = 'lutron'
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/lutron/cover.py b/homeassistant/components/lutron/cover.py
index da7f69095fc436..4a2d72d31160bc 100644
--- a/homeassistant/components/lutron/cover.py
+++ b/homeassistant/components/lutron/cover.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['lutron']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Lutron shades."""
diff --git a/homeassistant/components/lutron/light.py b/homeassistant/components/lutron/light.py
index 5f3fd4787fd3ef..6ddf54e1fc1e50 100644
--- a/homeassistant/components/lutron/light.py
+++ b/homeassistant/components/lutron/light.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['lutron']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Lutron lights."""
diff --git a/homeassistant/components/lutron/scene.py b/homeassistant/components/lutron/scene.py
index a2d18c6d242407..05deeef260d52b 100644
--- a/homeassistant/components/lutron/scene.py
+++ b/homeassistant/components/lutron/scene.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['lutron']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Lutron scenes."""
diff --git a/homeassistant/components/lutron/switch.py b/homeassistant/components/lutron/switch.py
index b42c0d930bc834..0b1705fb235228 100644
--- a/homeassistant/components/lutron/switch.py
+++ b/homeassistant/components/lutron/switch.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['lutron']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Lutron switches."""
diff --git a/homeassistant/components/lutron_caseta/__init__.py b/homeassistant/components/lutron_caseta/__init__.py
index 61c005f60b2d22..516b5ccd7c864f 100644
--- a/homeassistant/components/lutron_caseta/__init__.py
+++ b/homeassistant/components/lutron_caseta/__init__.py
@@ -8,8 +8,6 @@
 from homeassistant.helpers import discovery
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pylutron-caseta==0.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 LUTRON_CASETA_SMARTBRIDGE = 'lutron_smartbridge'
diff --git a/homeassistant/components/lutron_caseta/cover.py b/homeassistant/components/lutron_caseta/cover.py
index d970f5282ff003..8793fc0236e2d1 100644
--- a/homeassistant/components/lutron_caseta/cover.py
+++ b/homeassistant/components/lutron_caseta/cover.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['lutron_caseta']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/lutron_caseta/light.py b/homeassistant/components/lutron_caseta/light.py
index d883da73c9161a..af93a459031e9b 100644
--- a/homeassistant/components/lutron_caseta/light.py
+++ b/homeassistant/components/lutron_caseta/light.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['lutron_caseta']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/lutron_caseta/scene.py b/homeassistant/components/lutron_caseta/scene.py
index 2e7059a56fc0a2..df0bb6a7a5a949 100644
--- a/homeassistant/components/lutron_caseta/scene.py
+++ b/homeassistant/components/lutron_caseta/scene.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['lutron_caseta']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/lutron_caseta/switch.py b/homeassistant/components/lutron_caseta/switch.py
index 54c670913576ce..0ccf625f765a56 100644
--- a/homeassistant/components/lutron_caseta/switch.py
+++ b/homeassistant/components/lutron_caseta/switch.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['lutron_caseta']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/lw12wifi/light.py b/homeassistant/components/lw12wifi/light.py
index 5d9b7635ad2dd1..a2ff77dc2d0fda 100644
--- a/homeassistant/components/lw12wifi/light.py
+++ b/homeassistant/components/lw12wifi/light.py
@@ -16,8 +16,6 @@
 import homeassistant.util.color as color_util
 
 
-REQUIREMENTS = ['lw12==0.9.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/lyft/sensor.py b/homeassistant/components/lyft/sensor.py
index 98d79cd970b965..b5788e50b33835 100644
--- a/homeassistant/components/lyft/sensor.py
+++ b/homeassistant/components/lyft/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['lyft_rides==0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CLIENT_ID = 'client_id'
diff --git a/homeassistant/components/magicseaweed/sensor.py b/homeassistant/components/magicseaweed/sensor.py
index 4c09d1e09e04f0..772cfb073c971a 100644
--- a/homeassistant/components/magicseaweed/sensor.py
+++ b/homeassistant/components/magicseaweed/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['magicseaweed==1.0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_HOURS = 'hours'
diff --git a/homeassistant/components/mailbox/__init__.py b/homeassistant/components/mailbox/__init__.py
index 1907a1e9e978a7..8f8511464641ce 100644
--- a/homeassistant/components/mailbox/__init__.py
+++ b/homeassistant/components/mailbox/__init__.py
@@ -18,7 +18,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['http']
 DOMAIN = 'mailbox'
 
 EVENT = 'mailbox_updated'
diff --git a/homeassistant/components/mailgun/__init__.py b/homeassistant/components/mailgun/__init__.py
index 2a941d8bf505b8..2f89904f12b6be 100644
--- a/homeassistant/components/mailgun/__init__.py
+++ b/homeassistant/components/mailgun/__init__.py
@@ -15,7 +15,6 @@
 CONF_SANDBOX = 'sandbox'
 
 DEFAULT_SANDBOX = False
-DEPENDENCIES = ['webhook']
 DOMAIN = 'mailgun'
 
 MESSAGE_RECEIVED = '{}_message_received'.format(DOMAIN)
diff --git a/homeassistant/components/mailgun/notify.py b/homeassistant/components/mailgun/notify.py
index b9f5bf0b10000f..4709f87b70c86c 100644
--- a/homeassistant/components/mailgun/notify.py
+++ b/homeassistant/components/mailgun/notify.py
@@ -11,12 +11,8 @@
 
 from . import CONF_SANDBOX, DOMAIN as MAILGUN_DOMAIN
 
-REQUIREMENTS = ['pymailgunner==1.4']
-
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mailgun']
-
 # Images to attach to notification
 ATTR_IMAGES = 'images'
 
diff --git a/homeassistant/components/manual_mqtt/alarm_control_panel.py b/homeassistant/components/manual_mqtt/alarm_control_panel.py
index 8057a8993473f1..d952dd68ebb2f6 100644
--- a/homeassistant/components/manual_mqtt/alarm_control_panel.py
+++ b/homeassistant/components/manual_mqtt/alarm_control_panel.py
@@ -83,8 +83,6 @@ def _state_schema(state):
     return vol.Schema(schema)
 
 
-DEPENDENCIES = ['mqtt']
-
 PLATFORM_SCHEMA = vol.Schema(vol.All(mqtt.MQTT_BASE_PLATFORM_SCHEMA.extend({
     vol.Required(CONF_PLATFORM): 'manual_mqtt',
     vol.Optional(CONF_NAME, default=DEFAULT_ALARM_NAME): cv.string,
diff --git a/homeassistant/components/mastodon/notify.py b/homeassistant/components/mastodon/notify.py
index c1a91b8312ea1f..d4b78cc4e9fad7 100644
--- a/homeassistant/components/mastodon/notify.py
+++ b/homeassistant/components/mastodon/notify.py
@@ -9,8 +9,6 @@
 from homeassistant.components.notify import (PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-REQUIREMENTS = ['Mastodon.py==1.3.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_BASE_URL = 'base_url'
diff --git a/homeassistant/components/matrix/__init__.py b/homeassistant/components/matrix/__init__.py
index 4b3c1bf4d76965..0090d6eb62fa5e 100644
--- a/homeassistant/components/matrix/__init__.py
+++ b/homeassistant/components/matrix/__init__.py
@@ -14,8 +14,6 @@
 from homeassistant.util.json import load_json, save_json
 from homeassistant.exceptions import HomeAssistantError
 
-REQUIREMENTS = ['matrix-client==0.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 SESSION_FILE = '.matrix.conf'
diff --git a/homeassistant/components/matrix/notify.py b/homeassistant/components/matrix/notify.py
index f1f53268c2ba85..de2ac3bda2a0b0 100644
--- a/homeassistant/components/matrix/notify.py
+++ b/homeassistant/components/matrix/notify.py
@@ -13,8 +13,6 @@
 CONF_DEFAULT_ROOM = 'default_room'
 
 DOMAIN = 'matrix'
-DEPENDENCIES = [DOMAIN]
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_DEFAULT_ROOM): cv.string,
 })
diff --git a/homeassistant/components/maxcube/__init__.py b/homeassistant/components/maxcube/__init__.py
index c398ccbde4f41e..12a6fda2cc3b2f 100644
--- a/homeassistant/components/maxcube/__init__.py
+++ b/homeassistant/components/maxcube/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.const import CONF_HOST, CONF_PORT, CONF_SCAN_INTERVAL
 
-REQUIREMENTS = ['maxcube-api==0.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_PORT = 62910
diff --git a/homeassistant/components/media_extractor/__init__.py b/homeassistant/components/media_extractor/__init__.py
index f44075816affd2..98f03cd8fd099c 100644
--- a/homeassistant/components/media_extractor/__init__.py
+++ b/homeassistant/components/media_extractor/__init__.py
@@ -12,15 +12,12 @@
     ATTR_ENTITY_ID)
 from homeassistant.helpers import config_validation as cv
 
-REQUIREMENTS = ['youtube_dl==2019.04.07']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CUSTOMIZE_ENTITIES = 'customize'
 CONF_DEFAULT_STREAM_QUERY = 'default_query'
 
 DEFAULT_STREAM_QUERY = 'best'
-DEPENDENCIES = ['media_player']
 DOMAIN = 'media_extractor'
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/media_player/__init__.py b/homeassistant/components/media_player/__init__.py
index 5bc2d640e2bd56..7dcfdac52179f8 100644
--- a/homeassistant/components/media_player/__init__.py
+++ b/homeassistant/components/media_player/__init__.py
@@ -51,8 +51,6 @@
 _LOGGER = logging.getLogger(__name__)
 _RND = SystemRandom()
 
-DEPENDENCIES = ['http']
-
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
 
 ENTITY_IMAGE_URL = '/api/media_player_proxy/{0}?token={1}&cache={2}'
diff --git a/homeassistant/components/mediaroom/media_player.py b/homeassistant/components/mediaroom/media_player.py
index acbc0462722a59..75aa20daf825b9 100644
--- a/homeassistant/components/mediaroom/media_player.py
+++ b/homeassistant/components/mediaroom/media_player.py
@@ -19,8 +19,6 @@
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect, dispatcher_send)
 
-REQUIREMENTS = ['pymediaroom==0.6.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_MEDIAROOM = 'mediaroom_known_stb'
diff --git a/homeassistant/components/melissa/__init__.py b/homeassistant/components/melissa/__init__.py
index 2037caa11c334f..14ecfadb5bf134 100644
--- a/homeassistant/components/melissa/__init__.py
+++ b/homeassistant/components/melissa/__init__.py
@@ -7,8 +7,6 @@
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 
-REQUIREMENTS = ["py-melissa-climate==2.0.0"]
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'melissa'
diff --git a/homeassistant/components/melissa/climate.py b/homeassistant/components/melissa/climate.py
index 79d94a419912a5..8d834691b12932 100644
--- a/homeassistant/components/melissa/climate.py
+++ b/homeassistant/components/melissa/climate.py
@@ -13,8 +13,6 @@
 
 from . import DATA_MELISSA
 
-DEPENDENCIES = ['melissa']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_FLAGS = (SUPPORT_FAN_MODE | SUPPORT_OPERATION_MODE |
diff --git a/homeassistant/components/meraki/device_tracker.py b/homeassistant/components/meraki/device_tracker.py
index d12aff1127a0d9..edca1fbd494ca7 100644
--- a/homeassistant/components/meraki/device_tracker.py
+++ b/homeassistant/components/meraki/device_tracker.py
@@ -18,7 +18,6 @@
 
 CONF_VALIDATOR = 'validator'
 CONF_SECRET = 'secret'
-DEPENDENCIES = ['http']
 URL = '/api/meraki'
 VERSION = '2.0'
 
diff --git a/homeassistant/components/message_bird/notify.py b/homeassistant/components/message_bird/notify.py
index c801de34a9a6ae..eecd563dc53f53 100644
--- a/homeassistant/components/message_bird/notify.py
+++ b/homeassistant/components/message_bird/notify.py
@@ -9,8 +9,6 @@
 from homeassistant.components.notify import (ATTR_TARGET, PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-REQUIREMENTS = ['messagebird==1.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/met/weather.py b/homeassistant/components/met/weather.py
index 6c9613ac5d2838..d9824e203c5462 100644
--- a/homeassistant/components/met/weather.py
+++ b/homeassistant/components/met/weather.py
@@ -13,8 +13,6 @@
     async_call_later, async_track_utc_time_change)
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['pyMetno==0.4.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Weather forecast from met.no, delivered by the Norwegian " \
diff --git a/homeassistant/components/meteo_france/__init__.py b/homeassistant/components/meteo_france/__init__.py
index e084cff3c79c73..df0292ec407db5 100644
--- a/homeassistant/components/meteo_france/__init__.py
+++ b/homeassistant/components/meteo_france/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['meteofrance==0.3.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by Météo-France"
diff --git a/homeassistant/components/metoffice/sensor.py b/homeassistant/components/metoffice/sensor.py
index 6c4e91517dac6f..ff334823ec6f84 100644
--- a/homeassistant/components/metoffice/sensor.py
+++ b/homeassistant/components/metoffice/sensor.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['datapoint==0.4.3']
-
 ATTR_LAST_UPDATE = 'last_update'
 ATTR_SENSOR_ID = 'sensor_id'
 ATTR_SITE_ID = 'site_id'
diff --git a/homeassistant/components/metoffice/weather.py b/homeassistant/components/metoffice/weather.py
index a67dcdcdbd67c7..409fc0991226a2 100644
--- a/homeassistant/components/metoffice/weather.py
+++ b/homeassistant/components/metoffice/weather.py
@@ -10,8 +10,6 @@
 
 from .sensor import ATTRIBUTION, CONDITION_CLASSES, MetOfficeCurrentData
 
-REQUIREMENTS = ['datapoint==0.4.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = "Met Office"
diff --git a/homeassistant/components/mfi/sensor.py b/homeassistant/components/mfi/sensor.py
index 36f9d1a829c25c..49ec86c93cd693 100644
--- a/homeassistant/components/mfi/sensor.py
+++ b/homeassistant/components/mfi/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['mficlient==0.3.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_SSL = True
diff --git a/homeassistant/components/mfi/switch.py b/homeassistant/components/mfi/switch.py
index 818081f7a2ed69..7b51813589dbbf 100644
--- a/homeassistant/components/mfi/switch.py
+++ b/homeassistant/components/mfi/switch.py
@@ -10,8 +10,6 @@
     CONF_VERIFY_SSL)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['mficlient==0.3.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_SSL = True
diff --git a/homeassistant/components/mhz19/sensor.py b/homeassistant/components/mhz19/sensor.py
index 3aa82950fa7b8a..16e9da304a758c 100644
--- a/homeassistant/components/mhz19/sensor.py
+++ b/homeassistant/components/mhz19/sensor.py
@@ -12,8 +12,6 @@
 from homeassistant.util.temperature import celsius_to_fahrenheit
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pmsensor==0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_SERIAL_DEVICE = 'serial_device'
diff --git a/homeassistant/components/microsoft/tts.py b/homeassistant/components/microsoft/tts.py
index 9fe31ef495eced..39bd1186b76e25 100644
--- a/homeassistant/components/microsoft/tts.py
+++ b/homeassistant/components/microsoft/tts.py
@@ -15,8 +15,6 @@
 CONF_PITCH = 'pitch'
 CONF_CONTOUR = 'contour'
 
-REQUIREMENTS = ["pycsspeechtts==1.0.2"]
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORTED_LANGUAGES = [
diff --git a/homeassistant/components/microsoft_face/__init__.py b/homeassistant/components/microsoft_face/__init__.py
index 9b3ee960fb23c8..25b74698da6c81 100644
--- a/homeassistant/components/microsoft_face/__init__.py
+++ b/homeassistant/components/microsoft_face/__init__.py
@@ -25,7 +25,6 @@
 
 DATA_MICROSOFT_FACE = 'microsoft_face'
 DEFAULT_TIMEOUT = 10
-DEPENDENCIES = ['camera']
 DOMAIN = 'microsoft_face'
 
 FACE_API_URL = "api.cognitive.microsoft.com/face/v1.0/{0}"
diff --git a/homeassistant/components/microsoft_face_detect/image_processing.py b/homeassistant/components/microsoft_face_detect/image_processing.py
index 91eae07e9928bf..addcea21c86c5e 100644
--- a/homeassistant/components/microsoft_face_detect/image_processing.py
+++ b/homeassistant/components/microsoft_face_detect/image_processing.py
@@ -11,8 +11,6 @@
 from homeassistant.exceptions import HomeAssistantError
 import homeassistant.helpers.config_validation as cv
 
-DEPENDENCIES = ['microsoft_face']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORTED_ATTRIBUTES = [
diff --git a/homeassistant/components/microsoft_face_identify/image_processing.py b/homeassistant/components/microsoft_face_identify/image_processing.py
index 52baa3617e82a4..055778be311a44 100644
--- a/homeassistant/components/microsoft_face_identify/image_processing.py
+++ b/homeassistant/components/microsoft_face_identify/image_processing.py
@@ -12,8 +12,6 @@
 from homeassistant.exceptions import HomeAssistantError
 import homeassistant.helpers.config_validation as cv
 
-DEPENDENCIES = ['microsoft_face']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_GROUP = 'group'
diff --git a/homeassistant/components/miflora/sensor.py b/homeassistant/components/miflora/sensor.py
index 04595b0daeb148..0a8a51e0e80a90 100644
--- a/homeassistant/components/miflora/sensor.py
+++ b/homeassistant/components/miflora/sensor.py
@@ -11,8 +11,6 @@
     CONF_SCAN_INTERVAL, EVENT_HOMEASSISTANT_START)
 from homeassistant.core import callback
 
-REQUIREMENTS = ['miflora==0.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ADAPTER = 'adapter'
diff --git a/homeassistant/components/mikrotik/device_tracker.py b/homeassistant/components/mikrotik/device_tracker.py
index 7d376b431bbd82..0c3b6b313f1f0f 100644
--- a/homeassistant/components/mikrotik/device_tracker.py
+++ b/homeassistant/components/mikrotik/device_tracker.py
@@ -11,8 +11,6 @@
 from homeassistant.const import (
     CONF_HOST, CONF_PASSWORD, CONF_USERNAME, CONF_PORT, CONF_SSL, CONF_METHOD)
 
-REQUIREMENTS = ['librouteros==2.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 MTK_DEFAULT_API_PORT = '8728'
diff --git a/homeassistant/components/mill/climate.py b/homeassistant/components/mill/climate.py
index cb6d47a52b0826..43877a1f818099 100644
--- a/homeassistant/components/mill/climate.py
+++ b/homeassistant/components/mill/climate.py
@@ -15,8 +15,6 @@
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-REQUIREMENTS = ['millheater==0.3.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_AWAY_TEMP = 'away_temp'
diff --git a/homeassistant/components/mitemp_bt/sensor.py b/homeassistant/components/mitemp_bt/sensor.py
index cea2c6a55dbd6f..c2afaecf789ab2 100644
--- a/homeassistant/components/mitemp_bt/sensor.py
+++ b/homeassistant/components/mitemp_bt/sensor.py
@@ -12,8 +12,6 @@
 )
 
 
-REQUIREMENTS = ['mitemp_bt==0.0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ADAPTER = 'adapter'
diff --git a/homeassistant/components/mobile_app/__init__.py b/homeassistant/components/mobile_app/__init__.py
index a4ae78959cf367..711963a0b24bf3 100644
--- a/homeassistant/components/mobile_app/__init__.py
+++ b/homeassistant/components/mobile_app/__init__.py
@@ -15,10 +15,6 @@
 from .webhook import handle_webhook
 from .websocket_api import register_websocket_handlers
 
-DEPENDENCIES = ['device_tracker', 'http', 'webhook']
-
-REQUIREMENTS = ['PyNaCl==1.3.0']
-
 
 async def async_setup(hass: HomeAssistantType, config: ConfigType):
     """Set up the mobile app component."""
diff --git a/homeassistant/components/mobile_app/binary_sensor.py b/homeassistant/components/mobile_app/binary_sensor.py
index 50943bb6504d8b..71d9fd9d58ab85 100644
--- a/homeassistant/components/mobile_app/binary_sensor.py
+++ b/homeassistant/components/mobile_app/binary_sensor.py
@@ -13,8 +13,6 @@
 
 from .entity import MobileAppEntity, sensor_id
 
-DEPENDENCIES = ['mobile_app']
-
 
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up mobile app binary sensor from a config entry."""
diff --git a/homeassistant/components/mobile_app/notify.py b/homeassistant/components/mobile_app/notify.py
index 8d2ac1b97ecef4..a69c020cfc8c26 100644
--- a/homeassistant/components/mobile_app/notify.py
+++ b/homeassistant/components/mobile_app/notify.py
@@ -22,8 +22,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mobile_app']
-
 
 def push_registrations(hass):
     """Return a dictionary of push enabled registrations."""
diff --git a/homeassistant/components/mobile_app/sensor.py b/homeassistant/components/mobile_app/sensor.py
index 64ad69c5758ecc..2e54c2f4f6c1d2 100644
--- a/homeassistant/components/mobile_app/sensor.py
+++ b/homeassistant/components/mobile_app/sensor.py
@@ -12,8 +12,6 @@
 
 from .entity import MobileAppEntity, sensor_id
 
-DEPENDENCIES = ['mobile_app']
-
 
 async def async_setup_entry(hass, config_entry, async_add_entities):
     """Set up mobile app sensor from a config entry."""
diff --git a/homeassistant/components/mochad/__init__.py b/homeassistant/components/mochad/__init__.py
index e10adf693fe70d..78d137c95ead9f 100644
--- a/homeassistant/components/mochad/__init__.py
+++ b/homeassistant/components/mochad/__init__.py
@@ -9,8 +9,6 @@
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 from homeassistant.const import (CONF_HOST, CONF_PORT)
 
-REQUIREMENTS = ['pymochad==0.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONTROLLER = None
diff --git a/homeassistant/components/mochad/light.py b/homeassistant/components/mochad/light.py
index d2e1a567d27501..4a734be4ebd928 100644
--- a/homeassistant/components/mochad/light.py
+++ b/homeassistant/components/mochad/light.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mochad']
-
 CONF_BRIGHTNESS_LEVELS = 'brightness_levels'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/mochad/switch.py b/homeassistant/components/mochad/switch.py
index 03fd2db07bf2fe..a4fb46130f3be0 100644
--- a/homeassistant/components/mochad/switch.py
+++ b/homeassistant/components/mochad/switch.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mochad']
-
 
 PLATFORM_SCHEMA = vol.Schema({
     vol.Required(CONF_PLATFORM): mochad.DOMAIN,
diff --git a/homeassistant/components/modbus/__init__.py b/homeassistant/components/modbus/__init__.py
index 0500a904cb9c86..7d882066260857 100644
--- a/homeassistant/components/modbus/__init__.py
+++ b/homeassistant/components/modbus/__init__.py
@@ -9,8 +9,6 @@
     CONF_TYPE, EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pymodbus==1.5.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ADDRESS = 'address'
diff --git a/homeassistant/components/modbus/binary_sensor.py b/homeassistant/components/modbus/binary_sensor.py
index 0c10548452a01d..3a17f3c198d371 100644
--- a/homeassistant/components/modbus/binary_sensor.py
+++ b/homeassistant/components/modbus/binary_sensor.py
@@ -15,8 +15,6 @@
 CONF_COIL = 'coil'
 CONF_COILS = 'coils'
 
-DEPENDENCIES = ['modbus']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_COILS): [{
         vol.Required(CONF_COIL): cv.positive_int,
diff --git a/homeassistant/components/modbus/climate.py b/homeassistant/components/modbus/climate.py
index 4d2b86903e770d..cf7e295092308b 100644
--- a/homeassistant/components/modbus/climate.py
+++ b/homeassistant/components/modbus/climate.py
@@ -22,8 +22,6 @@
 DATA_TYPE_INT = 'int'
 DATA_TYPE_UINT = 'uint'
 DATA_TYPE_FLOAT = 'float'
-DEPENDENCIES = ['modbus']
-
 SUPPORT_FLAGS = SUPPORT_TARGET_TEMPERATURE
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/modbus/sensor.py b/homeassistant/components/modbus/sensor.py
index 10e11a9a656263..bca5ef9d34d168 100644
--- a/homeassistant/components/modbus/sensor.py
+++ b/homeassistant/components/modbus/sensor.py
@@ -29,8 +29,6 @@
 DATA_TYPE_INT = 'int'
 DATA_TYPE_UINT = 'uint'
 
-DEPENDENCIES = ['modbus']
-
 REGISTER_TYPE_HOLDING = 'holding'
 REGISTER_TYPE_INPUT = 'input'
 
diff --git a/homeassistant/components/modbus/switch.py b/homeassistant/components/modbus/switch.py
index 69c5e3e483888a..d74145ebad46ef 100644
--- a/homeassistant/components/modbus/switch.py
+++ b/homeassistant/components/modbus/switch.py
@@ -24,8 +24,6 @@
 CONF_VERIFY_REGISTER = 'verify_register'
 CONF_VERIFY_STATE = 'verify_state'
 
-DEPENDENCIES = ['modbus']
-
 REGISTER_TYPE_HOLDING = 'holding'
 REGISTER_TYPE_INPUT = 'input'
 
diff --git a/homeassistant/components/modem_callerid/sensor.py b/homeassistant/components/modem_callerid/sensor.py
index b87f4840334d4f..0e1f02efecfeeb 100644
--- a/homeassistant/components/modem_callerid/sensor.py
+++ b/homeassistant/components/modem_callerid/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['basicmodem==0.7']
-
 _LOGGER = logging.getLogger(__name__)
 DEFAULT_NAME = 'Modem CallerID'
 ICON = 'mdi:phone-classic'
diff --git a/homeassistant/components/monoprice/media_player.py b/homeassistant/components/monoprice/media_player.py
index edffd6ac7ce825..d8f22a5d00bac6 100644
--- a/homeassistant/components/monoprice/media_player.py
+++ b/homeassistant/components/monoprice/media_player.py
@@ -13,8 +13,6 @@
     ATTR_ENTITY_ID, CONF_NAME, CONF_PORT, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pymonoprice==0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_MONOPRICE = SUPPORT_VOLUME_MUTE | SUPPORT_VOLUME_SET | \
diff --git a/homeassistant/components/mopar/__init__.py b/homeassistant/components/mopar/__init__.py
index 4ee9f3219b483a..ec723b94fcc76b 100644
--- a/homeassistant/components/mopar/__init__.py
+++ b/homeassistant/components/mopar/__init__.py
@@ -18,8 +18,6 @@
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['motorparts==1.1.0']
-
 DOMAIN = 'mopar'
 DATA_UPDATED = '{}_data_updated'.format(DOMAIN)
 
diff --git a/homeassistant/components/mopar/lock.py b/homeassistant/components/mopar/lock.py
index aa2e0161813188..5a41058bb53c2b 100644
--- a/homeassistant/components/mopar/lock.py
+++ b/homeassistant/components/mopar/lock.py
@@ -7,8 +7,6 @@
 )
 from homeassistant.const import STATE_LOCKED, STATE_UNLOCKED
 
-DEPENDENCIES = ['mopar']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/mopar/sensor.py b/homeassistant/components/mopar/sensor.py
index 0d6e5765fda9aa..f09c0bdbea9f30 100644
--- a/homeassistant/components/mopar/sensor.py
+++ b/homeassistant/components/mopar/sensor.py
@@ -10,7 +10,6 @@
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import Entity
 
-DEPENDENCIES = ['mopar']
 ICON = 'mdi:car'
 
 
diff --git a/homeassistant/components/mopar/switch.py b/homeassistant/components/mopar/switch.py
index 352cdafbd417ab..4e1ff606100aff 100644
--- a/homeassistant/components/mopar/switch.py
+++ b/homeassistant/components/mopar/switch.py
@@ -5,8 +5,6 @@
 from homeassistant.components.switch import SwitchDevice
 from homeassistant.const import STATE_ON, STATE_OFF
 
-DEPENDENCIES = ['mopar']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/mpd/media_player.py b/homeassistant/components/mpd/media_player.py
index 8cbc1406e0bc4a..5340bc46b1262b 100644
--- a/homeassistant/components/mpd/media_player.py
+++ b/homeassistant/components/mpd/media_player.py
@@ -20,8 +20,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['python-mpd2==1.0.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'MPD'
diff --git a/homeassistant/components/mqtt/__init__.py b/homeassistant/components/mqtt/__init__.py
index 4f9ad990105853..e226e966b09667 100644
--- a/homeassistant/components/mqtt/__init__.py
+++ b/homeassistant/components/mqtt/__init__.py
@@ -40,8 +40,6 @@
     CONF_BROKER, CONF_DISCOVERY, DEFAULT_DISCOVERY, CONF_STATE_TOPIC,
     ATTR_DISCOVERY_HASH)
 
-REQUIREMENTS = ['paho-mqtt==1.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'mqtt'
diff --git a/homeassistant/components/mqtt/alarm_control_panel.py b/homeassistant/components/mqtt/alarm_control_panel.py
index 03a2ac8e3887fa..da3e2faf224229 100644
--- a/homeassistant/components/mqtt/alarm_control_panel.py
+++ b/homeassistant/components/mqtt/alarm_control_panel.py
@@ -37,8 +37,6 @@
 DEFAULT_ARM_HOME = 'ARM_HOME'
 DEFAULT_DISARM = 'DISARM'
 DEFAULT_NAME = 'MQTT Alarm'
-DEPENDENCIES = ['mqtt']
-
 PLATFORM_SCHEMA = mqtt.MQTT_BASE_PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_CODE): cv.string,
     vol.Optional(CONF_CODE_ARM_REQUIRED, default=True): cv.boolean,
diff --git a/homeassistant/components/mqtt/binary_sensor.py b/homeassistant/components/mqtt/binary_sensor.py
index 95daad9b262868..904a456fc466e7 100644
--- a/homeassistant/components/mqtt/binary_sensor.py
+++ b/homeassistant/components/mqtt/binary_sensor.py
@@ -29,8 +29,6 @@
 DEFAULT_PAYLOAD_ON = 'ON'
 DEFAULT_FORCE_UPDATE = False
 
-DEPENDENCIES = ['mqtt']
-
 PLATFORM_SCHEMA = mqtt.MQTT_RO_PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_DEVICE): mqtt.MQTT_ENTITY_DEVICE_INFO_SCHEMA,
     vol.Optional(CONF_DEVICE_CLASS): DEVICE_CLASSES_SCHEMA,
diff --git a/homeassistant/components/mqtt/camera.py b/homeassistant/components/mqtt/camera.py
index f651050b6c8596..0449bf79ca7691 100644
--- a/homeassistant/components/mqtt/camera.py
+++ b/homeassistant/components/mqtt/camera.py
@@ -23,8 +23,6 @@
 CONF_TOPIC = 'topic'
 DEFAULT_NAME = 'MQTT Camera'
 
-DEPENDENCIES = ['mqtt']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
     vol.Required(CONF_TOPIC): mqtt.valid_subscribe_topic,
diff --git a/homeassistant/components/mqtt/climate.py b/homeassistant/components/mqtt/climate.py
index 17d32984bb528d..6a8c4d83995af5 100644
--- a/homeassistant/components/mqtt/climate.py
+++ b/homeassistant/components/mqtt/climate.py
@@ -31,8 +31,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mqtt']
-
 DEFAULT_NAME = 'MQTT HVAC'
 
 CONF_POWER_COMMAND_TOPIC = 'power_command_topic'
diff --git a/homeassistant/components/mqtt/cover.py b/homeassistant/components/mqtt/cover.py
index 5cb7300f0efcb4..e1ad21564b5bbd 100644
--- a/homeassistant/components/mqtt/cover.py
+++ b/homeassistant/components/mqtt/cover.py
@@ -25,8 +25,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mqtt']
-
 CONF_GET_POSITION_TOPIC = 'position_topic'
 CONF_SET_POSITION_TEMPLATE = 'set_position_template'
 CONF_SET_POSITION_TOPIC = 'set_position_topic'
diff --git a/homeassistant/components/mqtt/device_tracker.py b/homeassistant/components/mqtt/device_tracker.py
index 659c6315b2150a..25528471d64310 100644
--- a/homeassistant/components/mqtt/device_tracker.py
+++ b/homeassistant/components/mqtt/device_tracker.py
@@ -11,8 +11,6 @@
 
 from . import CONF_QOS
 
-DEPENDENCIES = ['mqtt']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(mqtt.SCHEMA_BASE).extend({
diff --git a/homeassistant/components/mqtt/fan.py b/homeassistant/components/mqtt/fan.py
index d86390ee31de17..99aa68d19756aa 100644
--- a/homeassistant/components/mqtt/fan.py
+++ b/homeassistant/components/mqtt/fan.py
@@ -23,8 +23,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mqtt']
-
 CONF_STATE_VALUE_TEMPLATE = 'state_value_template'
 CONF_SPEED_STATE_TOPIC = 'speed_state_topic'
 CONF_SPEED_COMMAND_TOPIC = 'speed_command_topic'
diff --git a/homeassistant/components/mqtt/light/__init__.py b/homeassistant/components/mqtt/light/__init__.py
index 4ff6efb8643960..d115f07ce7ee4e 100644
--- a/homeassistant/components/mqtt/light/__init__.py
+++ b/homeassistant/components/mqtt/light/__init__.py
@@ -17,8 +17,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mqtt']
-
 CONF_SCHEMA = 'schema'
 
 
diff --git a/homeassistant/components/mqtt/light/schema_basic.py b/homeassistant/components/mqtt/light/schema_basic.py
index d5aa4480139215..382effe837b50d 100644
--- a/homeassistant/components/mqtt/light/schema_basic.py
+++ b/homeassistant/components/mqtt/light/schema_basic.py
@@ -30,8 +30,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mqtt']
-
 CONF_BRIGHTNESS_COMMAND_TOPIC = 'brightness_command_topic'
 CONF_BRIGHTNESS_SCALE = 'brightness_scale'
 CONF_BRIGHTNESS_STATE_TOPIC = 'brightness_state_topic'
diff --git a/homeassistant/components/mqtt/light/schema_json.py b/homeassistant/components/mqtt/light/schema_json.py
index a52f3c58d0efc9..27c88edb15fd84 100644
--- a/homeassistant/components/mqtt/light/schema_json.py
+++ b/homeassistant/components/mqtt/light/schema_json.py
@@ -35,8 +35,6 @@
 
 DOMAIN = 'mqtt_json'
 
-DEPENDENCIES = ['mqtt']
-
 DEFAULT_BRIGHTNESS = False
 DEFAULT_COLOR_TEMP = False
 DEFAULT_EFFECT = False
diff --git a/homeassistant/components/mqtt/light/schema_template.py b/homeassistant/components/mqtt/light/schema_template.py
index 49cba082401d16..ab9fb0e4454824 100644
--- a/homeassistant/components/mqtt/light/schema_template.py
+++ b/homeassistant/components/mqtt/light/schema_template.py
@@ -30,8 +30,6 @@
 
 DOMAIN = 'mqtt_template'
 
-DEPENDENCIES = ['mqtt']
-
 DEFAULT_NAME = 'MQTT Template Light'
 DEFAULT_OPTIMISTIC = False
 
diff --git a/homeassistant/components/mqtt/lock.py b/homeassistant/components/mqtt/lock.py
index 235eacc94540cf..75db4c3742d18a 100644
--- a/homeassistant/components/mqtt/lock.py
+++ b/homeassistant/components/mqtt/lock.py
@@ -27,8 +27,6 @@
 DEFAULT_OPTIMISTIC = False
 DEFAULT_PAYLOAD_LOCK = 'LOCK'
 DEFAULT_PAYLOAD_UNLOCK = 'UNLOCK'
-DEPENDENCIES = ['mqtt']
-
 PLATFORM_SCHEMA = mqtt.MQTT_RW_PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_DEVICE): mqtt.MQTT_ENTITY_DEVICE_INFO_SCHEMA,
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
diff --git a/homeassistant/components/mqtt/sensor.py b/homeassistant/components/mqtt/sensor.py
index b6419ea2c24b36..02dafdb57c1a01 100644
--- a/homeassistant/components/mqtt/sensor.py
+++ b/homeassistant/components/mqtt/sensor.py
@@ -32,8 +32,6 @@
 
 DEFAULT_NAME = 'MQTT Sensor'
 DEFAULT_FORCE_UPDATE = False
-DEPENDENCIES = ['mqtt']
-
 PLATFORM_SCHEMA = mqtt.MQTT_RO_PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_DEVICE): mqtt.MQTT_ENTITY_DEVICE_INFO_SCHEMA,
     vol.Optional(CONF_DEVICE_CLASS): DEVICE_CLASSES_SCHEMA,
diff --git a/homeassistant/components/mqtt/server.py b/homeassistant/components/mqtt/server.py
index d7d36add517f6e..8944aba2dae37a 100644
--- a/homeassistant/components/mqtt/server.py
+++ b/homeassistant/components/mqtt/server.py
@@ -8,12 +8,8 @@
 from homeassistant.const import EVENT_HOMEASSISTANT_STOP
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['hbmqtt==0.9.4']
-
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['http']
-
 # None allows custom config to be created through generate_config
 HBMQTT_CONFIG_SCHEMA = vol.Any(None, vol.Schema({
     vol.Optional('auth'): vol.Schema({
diff --git a/homeassistant/components/mqtt/switch.py b/homeassistant/components/mqtt/switch.py
index 20d28b6496ca8b..a9e3875aaea66b 100644
--- a/homeassistant/components/mqtt/switch.py
+++ b/homeassistant/components/mqtt/switch.py
@@ -22,8 +22,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mqtt']
-
 DEFAULT_NAME = 'MQTT Switch'
 DEFAULT_PAYLOAD_ON = 'ON'
 DEFAULT_PAYLOAD_OFF = 'OFF'
diff --git a/homeassistant/components/mqtt/vacuum.py b/homeassistant/components/mqtt/vacuum.py
index 23a5e34b3caff5..7d910f0ac89de8 100644
--- a/homeassistant/components/mqtt/vacuum.py
+++ b/homeassistant/components/mqtt/vacuum.py
@@ -22,8 +22,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mqtt']
-
 SERVICE_TO_STRING = {
     SUPPORT_TURN_ON: 'turn_on',
     SUPPORT_TURN_OFF: 'turn_off',
diff --git a/homeassistant/components/mqtt_eventstream/__init__.py b/homeassistant/components/mqtt_eventstream/__init__.py
index fb6a94f1870d73..0b54c8535a2073 100644
--- a/homeassistant/components/mqtt_eventstream/__init__.py
+++ b/homeassistant/components/mqtt_eventstream/__init__.py
@@ -15,8 +15,6 @@
 from homeassistant.helpers.json import JSONEncoder
 
 DOMAIN = 'mqtt_eventstream'
-DEPENDENCIES = ['mqtt']
-
 CONF_PUBLISH_TOPIC = 'publish_topic'
 CONF_SUBSCRIBE_TOPIC = 'subscribe_topic'
 CONF_PUBLISH_EVENTSTREAM_RECEIVED = 'publish_eventstream_received'
diff --git a/homeassistant/components/mqtt_json/device_tracker.py b/homeassistant/components/mqtt_json/device_tracker.py
index 6059b26bcbdc11..eed6f03615e7d5 100644
--- a/homeassistant/components/mqtt_json/device_tracker.py
+++ b/homeassistant/components/mqtt_json/device_tracker.py
@@ -13,8 +13,6 @@
     CONF_DEVICES, ATTR_GPS_ACCURACY, ATTR_LATITUDE,
     ATTR_LONGITUDE, ATTR_BATTERY_LEVEL)
 
-DEPENDENCIES = ['mqtt']
-
 _LOGGER = logging.getLogger(__name__)
 
 GPS_JSON_PAYLOAD_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/mqtt_room/sensor.py b/homeassistant/components/mqtt_room/sensor.py
index 961769711a4d6c..37ea2697da15be 100644
--- a/homeassistant/components/mqtt_room/sensor.py
+++ b/homeassistant/components/mqtt_room/sensor.py
@@ -17,8 +17,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['mqtt']
-
 ATTR_DEVICE_ID = 'device_id'
 ATTR_DISTANCE = 'distance'
 ATTR_ROOM = 'room'
diff --git a/homeassistant/components/mqtt_statestream/__init__.py b/homeassistant/components/mqtt_statestream/__init__.py
index 18a70bf75bb3a8..0d594822e05764 100644
--- a/homeassistant/components/mqtt_statestream/__init__.py
+++ b/homeassistant/components/mqtt_statestream/__init__.py
@@ -16,7 +16,6 @@
 CONF_PUBLISH_ATTRIBUTES = 'publish_attributes'
 CONF_PUBLISH_TIMESTAMPS = 'publish_timestamps'
 
-DEPENDENCIES = ['mqtt']
 DOMAIN = 'mqtt_statestream'
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/mvglive/sensor.py b/homeassistant/components/mvglive/sensor.py
index 978c9ad34eb436..8c887031aa9eef 100644
--- a/homeassistant/components/mvglive/sensor.py
+++ b/homeassistant/components/mvglive/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.const import (
     CONF_NAME, ATTR_ATTRIBUTION)
 
-REQUIREMENTS = ['PyMVGLive==1.1.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_NEXT_DEPARTURE = 'nextdeparture'
diff --git a/homeassistant/components/mychevy/__init__.py b/homeassistant/components/mychevy/__init__.py
index e6fd7f19c2a3ab..b4235362ff26ab 100644
--- a/homeassistant/components/mychevy/__init__.py
+++ b/homeassistant/components/mychevy/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers import discovery
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['mychevy==1.2.0']
-
 DOMAIN = 'mychevy'
 UPDATE_TOPIC = DOMAIN
 ERROR_TOPIC = DOMAIN + "_error"
diff --git a/homeassistant/components/mycroft/__init__.py b/homeassistant/components/mycroft/__init__.py
index 29f6383f686b1e..fdcedfb7345195 100644
--- a/homeassistant/components/mycroft/__init__.py
+++ b/homeassistant/components/mycroft/__init__.py
@@ -7,8 +7,6 @@
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['mycroftapi==2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'mycroft'
diff --git a/homeassistant/components/mycroft/notify.py b/homeassistant/components/mycroft/notify.py
index d66be629f17b09..5918f16290ddc5 100644
--- a/homeassistant/components/mycroft/notify.py
+++ b/homeassistant/components/mycroft/notify.py
@@ -3,8 +3,6 @@
 
 from homeassistant.components.notify import BaseNotificationService
 
-DEPENDENCIES = ['mycroft']
-
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/myq/cover.py b/homeassistant/components/myq/cover.py
index 5b926a183f72c9..395e5d4e9596f0 100644
--- a/homeassistant/components/myq/cover.py
+++ b/homeassistant/components/myq/cover.py
@@ -11,7 +11,6 @@
 )
 from homeassistant.helpers import aiohttp_client, config_validation as cv
 
-REQUIREMENTS = ['pymyq==1.2.0']
 _LOGGER = logging.getLogger(__name__)
 
 MYQ_TO_HASS = {
diff --git a/homeassistant/components/mysensors/__init__.py b/homeassistant/components/mysensors/__init__.py
index 7ca21ac582a001..12d210b50a3f7b 100644
--- a/homeassistant/components/mysensors/__init__.py
+++ b/homeassistant/components/mysensors/__init__.py
@@ -17,8 +17,6 @@
 from .device import get_mysensors_devices
 from .gateway import get_mysensors_gateway, setup_gateways, finish_setup
 
-REQUIREMENTS = ['pymysensors==0.18.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DEBUG = 'debug'
diff --git a/homeassistant/components/mystrom/binary_sensor.py b/homeassistant/components/mystrom/binary_sensor.py
index 42245dc4df3e85..d3b4dd554a99f2 100644
--- a/homeassistant/components/mystrom/binary_sensor.py
+++ b/homeassistant/components/mystrom/binary_sensor.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['http']
-
 
 async def async_setup_platform(hass, config, async_add_entities,
                                discovery_info=None):
diff --git a/homeassistant/components/mystrom/light.py b/homeassistant/components/mystrom/light.py
index f9b8dcd203b60c..149b83b2487005 100644
--- a/homeassistant/components/mystrom/light.py
+++ b/homeassistant/components/mystrom/light.py
@@ -10,8 +10,6 @@
     ATTR_HS_COLOR)
 from homeassistant.const import CONF_HOST, CONF_MAC, CONF_NAME
 
-REQUIREMENTS = ['python-mystrom==0.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'myStrom bulb'
diff --git a/homeassistant/components/mystrom/switch.py b/homeassistant/components/mystrom/switch.py
index a25517eea911db..3fbd6957eb97c5 100644
--- a/homeassistant/components/mystrom/switch.py
+++ b/homeassistant/components/mystrom/switch.py
@@ -7,8 +7,6 @@
 from homeassistant.const import (CONF_NAME, CONF_HOST)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-mystrom==0.5.0']
-
 DEFAULT_NAME = 'myStrom Switch'
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/mythicbeastsdns/__init__.py b/homeassistant/components/mythicbeastsdns/__init__.py
index 4db53bf0407cf4..02441d9c650a35 100644
--- a/homeassistant/components/mythicbeastsdns/__init__.py
+++ b/homeassistant/components/mythicbeastsdns/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.helpers.event import async_track_time_interval
 
-REQUIREMENTS = ['mbddns==0.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'mythicbeastsdns'
diff --git a/homeassistant/components/n26/__init__.py b/homeassistant/components/n26/__init__.py
index 8f4ade9c87f6ea..fb7084bffe7e1d 100644
--- a/homeassistant/components/n26/__init__.py
+++ b/homeassistant/components/n26/__init__.py
@@ -12,8 +12,6 @@
 
 from .const import DATA, DOMAIN
 
-REQUIREMENTS = ['n26==0.2.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_SCAN_INTERVAL = timedelta(minutes=30)
diff --git a/homeassistant/components/n26/sensor.py b/homeassistant/components/n26/sensor.py
index 682cd5dae68575..be5ad7a1b687f8 100644
--- a/homeassistant/components/n26/sensor.py
+++ b/homeassistant/components/n26/sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['n26']
-
 SCAN_INTERVAL = DEFAULT_SCAN_INTERVAL
 
 ATTR_IBAN = "account"
diff --git a/homeassistant/components/n26/switch.py b/homeassistant/components/n26/switch.py
index 0e7455ea7030c8..152212550971f4 100644
--- a/homeassistant/components/n26/switch.py
+++ b/homeassistant/components/n26/switch.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['n26']
-
 SCAN_INTERVAL = DEFAULT_SCAN_INTERVAL
 
 
diff --git a/homeassistant/components/nad/media_player.py b/homeassistant/components/nad/media_player.py
index 8c5a14a35243c8..60747fa63986e7 100644
--- a/homeassistant/components/nad/media_player.py
+++ b/homeassistant/components/nad/media_player.py
@@ -11,8 +11,6 @@
     SUPPORT_VOLUME_MUTE, SUPPORT_VOLUME_SET, SUPPORT_VOLUME_STEP)
 from homeassistant.const import CONF_NAME, STATE_OFF, STATE_ON, CONF_HOST
 
-REQUIREMENTS = ['nad_receiver==0.0.11']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_TYPE = 'RS232'
diff --git a/homeassistant/components/namecheapdns/__init__.py b/homeassistant/components/namecheapdns/__init__.py
index f86e7d18556786..d3c48d568bdb71 100644
--- a/homeassistant/components/namecheapdns/__init__.py
+++ b/homeassistant/components/namecheapdns/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.event import async_track_time_interval
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-REQUIREMENTS = ['defusedxml==0.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'namecheapdns'
diff --git a/homeassistant/components/nanoleaf/light.py b/homeassistant/components/nanoleaf/light.py
index 60457e21f9a67d..017bd0a256dc5c 100644
--- a/homeassistant/components/nanoleaf/light.py
+++ b/homeassistant/components/nanoleaf/light.py
@@ -15,8 +15,6 @@
     color_temperature_mired_to_kelvin as mired_to_kelvin
 from homeassistant.util.json import load_json, save_json
 
-REQUIREMENTS = ['pynanoleaf==0.0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Nanoleaf'
diff --git a/homeassistant/components/neato/__init__.py b/homeassistant/components/neato/__init__.py
index bb717b8d230b22..f179248b5632b4 100644
--- a/homeassistant/components/neato/__init__.py
+++ b/homeassistant/components/neato/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers import discovery
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pybotvac==0.0.13']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'neato'
diff --git a/homeassistant/components/neato/camera.py b/homeassistant/components/neato/camera.py
index f8106c3e645ebc..5d38e7b78809b5 100644
--- a/homeassistant/components/neato/camera.py
+++ b/homeassistant/components/neato/camera.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['neato']
-
 SCAN_INTERVAL = timedelta(minutes=10)
 
 
diff --git a/homeassistant/components/neato/switch.py b/homeassistant/components/neato/switch.py
index ea60f9492e22a7..0721381a563acb 100644
--- a/homeassistant/components/neato/switch.py
+++ b/homeassistant/components/neato/switch.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['neato']
-
 SCAN_INTERVAL = timedelta(minutes=10)
 
 SWITCH_TYPE_SCHEDULE = 'schedule'
diff --git a/homeassistant/components/neato/vacuum.py b/homeassistant/components/neato/vacuum.py
index 3575301ea97e6b..061d8fd04c8166 100644
--- a/homeassistant/components/neato/vacuum.py
+++ b/homeassistant/components/neato/vacuum.py
@@ -21,8 +21,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['neato']
-
 SCAN_INTERVAL = timedelta(minutes=5)
 
 SUPPORT_NEATO = SUPPORT_BATTERY | SUPPORT_PAUSE | SUPPORT_RETURN_HOME | \
diff --git a/homeassistant/components/nederlandse_spoorwegen/sensor.py b/homeassistant/components/nederlandse_spoorwegen/sensor.py
index 224d16e4869b9a..7fc3e438f38a55 100644
--- a/homeassistant/components/nederlandse_spoorwegen/sensor.py
+++ b/homeassistant/components/nederlandse_spoorwegen/sensor.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['nsapi==2.7.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by NS"
diff --git a/homeassistant/components/nello/lock.py b/homeassistant/components/nello/lock.py
index efb7719e2013fd..124fa6769ec854 100644
--- a/homeassistant/components/nello/lock.py
+++ b/homeassistant/components/nello/lock.py
@@ -8,8 +8,6 @@
 from homeassistant.components.lock import (LockDevice, PLATFORM_SCHEMA)
 from homeassistant.const import (CONF_PASSWORD, CONF_USERNAME)
 
-REQUIREMENTS = ['pynello==2.0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ADDRESS = 'address'
diff --git a/homeassistant/components/ness_alarm/__init__.py b/homeassistant/components/ness_alarm/__init__.py
index 97896f9aa3f9ec..8d9d081e6d8247 100644
--- a/homeassistant/components/ness_alarm/__init__.py
+++ b/homeassistant/components/ness_alarm/__init__.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 
-REQUIREMENTS = ['nessclient==0.9.15']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'ness_alarm'
diff --git a/homeassistant/components/ness_alarm/alarm_control_panel.py b/homeassistant/components/ness_alarm/alarm_control_panel.py
index 618297ef9a5216..06a3f9f1e13470 100644
--- a/homeassistant/components/ness_alarm/alarm_control_panel.py
+++ b/homeassistant/components/ness_alarm/alarm_control_panel.py
@@ -13,8 +13,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['ness_alarm']
-
 
 async def async_setup_platform(hass, config, async_add_entities,
                                discovery_info=None):
diff --git a/homeassistant/components/ness_alarm/binary_sensor.py b/homeassistant/components/ness_alarm/binary_sensor.py
index 2bed9eb64042bf..6d9486577a72f4 100644
--- a/homeassistant/components/ness_alarm/binary_sensor.py
+++ b/homeassistant/components/ness_alarm/binary_sensor.py
@@ -9,7 +9,6 @@
     CONF_ZONE_ID, CONF_ZONE_NAME, CONF_ZONE_TYPE, CONF_ZONES,
     SIGNAL_ZONE_CHANGED, ZoneChangedData)
 
-DEPENDENCIES = ['ness_alarm']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/nest/__init__.py b/homeassistant/components/nest/__init__.py
index 21aaa2109a10c4..cc726cdf1754c4 100644
--- a/homeassistant/components/nest/__init__.py
+++ b/homeassistant/components/nest/__init__.py
@@ -22,8 +22,6 @@
 from .const import DOMAIN
 from . import local_auth
 
-REQUIREMENTS = ['python-nest==4.1.0']
-
 _CONFIGURING = {}
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nest/binary_sensor.py b/homeassistant/components/nest/binary_sensor.py
index aa56bfbf29d50c..1fc8aa8929f330 100644
--- a/homeassistant/components/nest/binary_sensor.py
+++ b/homeassistant/components/nest/binary_sensor.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['nest']
-
 BINARY_TYPES = {'online': 'connectivity'}
 
 CLIMATE_BINARY_TYPES = {
diff --git a/homeassistant/components/nest/camera.py b/homeassistant/components/nest/camera.py
index 8b450e02b46777..029de178f24cc4 100644
--- a/homeassistant/components/nest/camera.py
+++ b/homeassistant/components/nest/camera.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['nest']
-
 NEST_BRAND = 'Nest'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({})
diff --git a/homeassistant/components/nest/climate.py b/homeassistant/components/nest/climate.py
index cd9a7cb71b634d..4707d8d0f8c30c 100644
--- a/homeassistant/components/nest/climate.py
+++ b/homeassistant/components/nest/climate.py
@@ -16,7 +16,6 @@
 
 from . import DATA_NEST, DOMAIN as NEST_DOMAIN, SIGNAL_NEST_UPDATE
 
-DEPENDENCIES = ['nest']
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/nest/sensor.py b/homeassistant/components/nest/sensor.py
index ecae83e303c2a9..2bfeea897849d9 100644
--- a/homeassistant/components/nest/sensor.py
+++ b/homeassistant/components/nest/sensor.py
@@ -8,8 +8,6 @@
 
 from . import CONF_SENSORS, DATA_NEST, DATA_NEST_CONFIG, NestSensorDevice
 
-DEPENDENCIES = ['nest']
-
 SENSOR_TYPES = ['humidity', 'operation_mode', 'hvac_state']
 
 TEMP_SENSOR_TYPES = ['temperature', 'target']
diff --git a/homeassistant/components/netatmo/__init__.py b/homeassistant/components/netatmo/__init__.py
index 2036e55b3a88ad..cf64363ba503f9 100644
--- a/homeassistant/components/netatmo/__init__.py
+++ b/homeassistant/components/netatmo/__init__.py
@@ -12,9 +12,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pyatmo==1.9']
-DEPENDENCIES = ['webhook']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_PERSONS = 'netatmo_persons'
diff --git a/homeassistant/components/netatmo/binary_sensor.py b/homeassistant/components/netatmo/binary_sensor.py
index 7c2b1a73a4dcd8..f282faf82c87aa 100644
--- a/homeassistant/components/netatmo/binary_sensor.py
+++ b/homeassistant/components/netatmo/binary_sensor.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['netatmo']
-
 # These are the available sensors mapped to binary_sensor class
 WELCOME_SENSOR_TYPES = {
     "Someone known": "motion",
diff --git a/homeassistant/components/netatmo/camera.py b/homeassistant/components/netatmo/camera.py
index c8a540be6dd950..b74dce4b26209b 100644
--- a/homeassistant/components/netatmo/camera.py
+++ b/homeassistant/components/netatmo/camera.py
@@ -11,8 +11,6 @@
 
 from . import CameraData, NETATMO_AUTH
 
-DEPENDENCIES = ['netatmo']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_HOME = 'home'
diff --git a/homeassistant/components/netatmo/climate.py b/homeassistant/components/netatmo/climate.py
index 5defbbf22e3e33..00c08c654ef0f3 100644
--- a/homeassistant/components/netatmo/climate.py
+++ b/homeassistant/components/netatmo/climate.py
@@ -16,8 +16,6 @@
 
 from . import NETATMO_AUTH
 
-DEPENDENCIES = ['netatmo']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_HOMES = 'homes'
diff --git a/homeassistant/components/netatmo/sensor.py b/homeassistant/components/netatmo/sensor.py
index 2ce4b6e6ce2a38..c9c1101c2a2b1e 100644
--- a/homeassistant/components/netatmo/sensor.py
+++ b/homeassistant/components/netatmo/sensor.py
@@ -19,8 +19,6 @@
 CONF_MODULES = 'modules'
 CONF_STATION = 'station'
 
-DEPENDENCIES = ['netatmo']
-
 # This is the NetAtmo data upload interval in seconds
 NETATMO_UPDATE_INTERVAL = 600
 
diff --git a/homeassistant/components/netatmo_public/sensor.py b/homeassistant/components/netatmo_public/sensor.py
index 3480534436da6b..814675ca8b7ae1 100644
--- a/homeassistant/components/netatmo_public/sensor.py
+++ b/homeassistant/components/netatmo_public/sensor.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['netatmo']
-
 CONF_AREAS = 'areas'
 CONF_LAT_NE = 'lat_ne'
 CONF_LON_NE = 'lon_ne'
diff --git a/homeassistant/components/netdata/sensor.py b/homeassistant/components/netdata/sensor.py
index 6d99722a4162d4..eb6d6088ea8840 100644
--- a/homeassistant/components/netdata/sensor.py
+++ b/homeassistant/components/netdata/sensor.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['netdata==0.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 MIN_TIME_BETWEEN_UPDATES = timedelta(minutes=1)
diff --git a/homeassistant/components/netgear/device_tracker.py b/homeassistant/components/netgear/device_tracker.py
index ce8c2d6066d3d4..36921601cc2722 100644
--- a/homeassistant/components/netgear/device_tracker.py
+++ b/homeassistant/components/netgear/device_tracker.py
@@ -10,8 +10,6 @@
     CONF_HOST, CONF_PASSWORD, CONF_USERNAME, CONF_PORT, CONF_SSL,
     CONF_DEVICES, CONF_EXCLUDE)
 
-REQUIREMENTS = ['pynetgear==0.5.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_APS = 'accesspoints'
diff --git a/homeassistant/components/netgear_lte/__init__.py b/homeassistant/components/netgear_lte/__init__.py
index c0f248a3dd5205..5491fffe96989f 100644
--- a/homeassistant/components/netgear_lte/__init__.py
+++ b/homeassistant/components/netgear_lte/__init__.py
@@ -24,8 +24,6 @@
 
 from . import sensor_types
 
-REQUIREMENTS = ['eternalegypt==0.0.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=10)
diff --git a/homeassistant/components/netgear_lte/binary_sensor.py b/homeassistant/components/netgear_lte/binary_sensor.py
index a26c8538ea5be9..b13e1b0bbb4d53 100644
--- a/homeassistant/components/netgear_lte/binary_sensor.py
+++ b/homeassistant/components/netgear_lte/binary_sensor.py
@@ -7,8 +7,6 @@
 from . import CONF_MONITORED_CONDITIONS, DATA_KEY, LTEEntity
 from .sensor_types import BINARY_SENSOR_CLASSES
 
-DEPENDENCIES = ['netgear_lte']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/netgear_lte/notify.py b/homeassistant/components/netgear_lte/notify.py
index fba1a335ace333..cb71a7945e332d 100644
--- a/homeassistant/components/netgear_lte/notify.py
+++ b/homeassistant/components/netgear_lte/notify.py
@@ -8,8 +8,6 @@
 
 from . import CONF_RECIPIENT, DATA_KEY
 
-DEPENDENCIES = ['netgear_lte']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/netgear_lte/sensor.py b/homeassistant/components/netgear_lte/sensor.py
index 238a5f9b72d3d6..edf55480a68304 100644
--- a/homeassistant/components/netgear_lte/sensor.py
+++ b/homeassistant/components/netgear_lte/sensor.py
@@ -8,8 +8,6 @@
 from .sensor_types import (
     SENSOR_SMS, SENSOR_SMS_TOTAL, SENSOR_USAGE, SENSOR_UNITS)
 
-DEPENDENCIES = ['netgear_lte']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/netio/switch.py b/homeassistant/components/netio/switch.py
index 27a7dfbd5e7de5..ddaa9ffe0ff80a 100644
--- a/homeassistant/components/netio/switch.py
+++ b/homeassistant/components/netio/switch.py
@@ -14,8 +14,6 @@
 from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pynetio==0.1.9.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_START_DATE = 'start_date'
@@ -25,7 +23,6 @@
 
 DEFAULT_PORT = 1234
 DEFAULT_USERNAME = 'admin'
-DEPENDENCIES = ['http']
 Device = namedtuple('device', ['netio', 'entities'])
 DEVICES = {}
 
diff --git a/homeassistant/components/neurio_energy/sensor.py b/homeassistant/components/neurio_energy/sensor.py
index 9e12465c69b078..5992ca70593e14 100644
--- a/homeassistant/components/neurio_energy/sensor.py
+++ b/homeassistant/components/neurio_energy/sensor.py
@@ -13,8 +13,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['neurio==0.3.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_API_SECRET = 'api_secret'
diff --git a/homeassistant/components/niko_home_control/light.py b/homeassistant/components/niko_home_control/light.py
index 00e8dc838a6c0d..b7ba5d33eb8e00 100644
--- a/homeassistant/components/niko_home_control/light.py
+++ b/homeassistant/components/niko_home_control/light.py
@@ -9,8 +9,6 @@
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['niko-home-control==0.1.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/nilu/air_quality.py b/homeassistant/components/nilu/air_quality.py
index 979d5736d6a20d..cdc099765214c8 100644
--- a/homeassistant/components/nilu/air_quality.py
+++ b/homeassistant/components/nilu/air_quality.py
@@ -11,8 +11,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['niluclient==0.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_AREA = 'area'
diff --git a/homeassistant/components/nissan_leaf/__init__.py b/homeassistant/components/nissan_leaf/__init__.py
index cb101c0a5309c5..f9e7cd7f2d1879 100644
--- a/homeassistant/components/nissan_leaf/__init__.py
+++ b/homeassistant/components/nissan_leaf/__init__.py
@@ -16,8 +16,6 @@
 from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.util.dt import utcnow
 
-REQUIREMENTS = ['pycarwings2==2.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'nissan_leaf'
diff --git a/homeassistant/components/nissan_leaf/binary_sensor.py b/homeassistant/components/nissan_leaf/binary_sensor.py
index 5c71cf1fc513a9..5456fdc913a51b 100644
--- a/homeassistant/components/nissan_leaf/binary_sensor.py
+++ b/homeassistant/components/nissan_leaf/binary_sensor.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['nissan_leaf']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up of a Nissan Leaf binary sensor."""
diff --git a/homeassistant/components/nissan_leaf/device_tracker.py b/homeassistant/components/nissan_leaf/device_tracker.py
index 95f6fcdcaf16c0..0e2dca25ca6842 100644
--- a/homeassistant/components/nissan_leaf/device_tracker.py
+++ b/homeassistant/components/nissan_leaf/device_tracker.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['nissan_leaf']
-
 ICON_CAR = "mdi:car"
 
 
diff --git a/homeassistant/components/nissan_leaf/sensor.py b/homeassistant/components/nissan_leaf/sensor.py
index 682f482b4888f2..064a96a64a1a53 100644
--- a/homeassistant/components/nissan_leaf/sensor.py
+++ b/homeassistant/components/nissan_leaf/sensor.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['nissan_leaf']
-
 ICON_RANGE = 'mdi:speedometer'
 
 
diff --git a/homeassistant/components/nissan_leaf/switch.py b/homeassistant/components/nissan_leaf/switch.py
index e6d72103a6c6c4..27f81b69dd7309 100644
--- a/homeassistant/components/nissan_leaf/switch.py
+++ b/homeassistant/components/nissan_leaf/switch.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['nissan_leaf']
-
 
 def setup_platform(hass, config, add_devices, discovery_info=None):
     """Nissan Leaf switch platform setup."""
diff --git a/homeassistant/components/nmap_tracker/device_tracker.py b/homeassistant/components/nmap_tracker/device_tracker.py
index e553d323b72306..3537f01b2b86d2 100644
--- a/homeassistant/components/nmap_tracker/device_tracker.py
+++ b/homeassistant/components/nmap_tracker/device_tracker.py
@@ -13,8 +13,6 @@
     DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.const import CONF_HOSTS
 
-REQUIREMENTS = ['python-nmap==0.6.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_EXCLUDE = 'exclude'
diff --git a/homeassistant/components/nmbs/sensor.py b/homeassistant/components/nmbs/sensor.py
index 034c37530b355e..799225968e5493 100644
--- a/homeassistant/components/nmbs/sensor.py
+++ b/homeassistant/components/nmbs/sensor.py
@@ -23,8 +23,6 @@
 CONF_STATION_LIVE = 'station_live'
 CONF_EXCLUDE_VIAS = 'exclude_vias'
 
-REQUIREMENTS = ["pyrail==0.0.3"]
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_STATION_FROM): cv.string,
     vol.Required(CONF_STATION_TO): cv.string,
diff --git a/homeassistant/components/noaa_tides/sensor.py b/homeassistant/components/noaa_tides/sensor.py
index 0c4bde94f5770f..0749f13031f20c 100644
--- a/homeassistant/components/noaa_tides/sensor.py
+++ b/homeassistant/components/noaa_tides/sensor.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['py_noaa==0.3.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_STATION_ID = 'station_id'
diff --git a/homeassistant/components/norway_air/air_quality.py b/homeassistant/components/norway_air/air_quality.py
index 06ed68801f89c7..f2d5d87be47cb0 100644
--- a/homeassistant/components/norway_air/air_quality.py
+++ b/homeassistant/components/norway_air/air_quality.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
 
-REQUIREMENTS = ['pyMetno==0.4.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Air quality from " \
diff --git a/homeassistant/components/nsw_fuel_station/sensor.py b/homeassistant/components/nsw_fuel_station/sensor.py
index ce4337fc93ab6c..9bb24973f45541 100644
--- a/homeassistant/components/nsw_fuel_station/sensor.py
+++ b/homeassistant/components/nsw_fuel_station/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['nsw-fuel-api-client==1.0.10']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_STATION_ID = 'station_id'
diff --git a/homeassistant/components/nsw_rural_fire_service_feed/geo_location.py b/homeassistant/components/nsw_rural_fire_service_feed/geo_location.py
index 38491feb32f406..7a6d681bfbb205 100644
--- a/homeassistant/components/nsw_rural_fire_service_feed/geo_location.py
+++ b/homeassistant/components/nsw_rural_fire_service_feed/geo_location.py
@@ -16,8 +16,6 @@
     async_dispatcher_connect, dispatcher_send)
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['geojson_client==0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CATEGORY = 'category'
diff --git a/homeassistant/components/nuheat/__init__.py b/homeassistant/components/nuheat/__init__.py
index 4ea37339ef35f3..f8227391ffd834 100644
--- a/homeassistant/components/nuheat/__init__.py
+++ b/homeassistant/components/nuheat/__init__.py
@@ -7,8 +7,6 @@
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers import discovery
 
-REQUIREMENTS = ["nuheat==0.3.0"]
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'nuheat'
diff --git a/homeassistant/components/nuheat/climate.py b/homeassistant/components/nuheat/climate.py
index 32adc1d216f3c5..6a391679b89826 100644
--- a/homeassistant/components/nuheat/climate.py
+++ b/homeassistant/components/nuheat/climate.py
@@ -15,8 +15,6 @@
 
 from . import DOMAIN as NUHEAT_DOMAIN
 
-DEPENDENCIES = ["nuheat"]
-
 _LOGGER = logging.getLogger(__name__)
 
 ICON = "mdi:thermometer"
diff --git a/homeassistant/components/nuimo_controller/__init__.py b/homeassistant/components/nuimo_controller/__init__.py
index 70509469d2bcf9..ca1de204a395c2 100644
--- a/homeassistant/components/nuimo_controller/__init__.py
+++ b/homeassistant/components/nuimo_controller/__init__.py
@@ -8,10 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.const import (CONF_MAC, CONF_NAME, EVENT_HOMEASSISTANT_STOP)
 
-REQUIREMENTS = [
-    '--only-binary=all '  # avoid compilation of gattlib
-    'nuimo==0.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'nuimo_controller'
diff --git a/homeassistant/components/nuki/lock.py b/homeassistant/components/nuki/lock.py
index ef49d4b97dd955..0d0452378583b7 100644
--- a/homeassistant/components/nuki/lock.py
+++ b/homeassistant/components/nuki/lock.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.service import extract_entity_ids
 
-REQUIREMENTS = ['pynuki==1.3.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_PORT = 8080
diff --git a/homeassistant/components/nut/sensor.py b/homeassistant/components/nut/sensor.py
index 43ba06f70eb1b3..1a4ce779878119 100644
--- a/homeassistant/components/nut/sensor.py
+++ b/homeassistant/components/nut/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pynut2==2.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'NUT UPS'
diff --git a/homeassistant/components/nx584/alarm_control_panel.py b/homeassistant/components/nx584/alarm_control_panel.py
index c5e1fede6fd8fd..4c6c604c950b5f 100644
--- a/homeassistant/components/nx584/alarm_control_panel.py
+++ b/homeassistant/components/nx584/alarm_control_panel.py
@@ -11,8 +11,6 @@
     STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED, STATE_ALARM_TRIGGERED)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pynx584==0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_HOST = 'localhost'
diff --git a/homeassistant/components/nx584/binary_sensor.py b/homeassistant/components/nx584/binary_sensor.py
index 61f8fb801eac5b..2162d7420221e3 100644
--- a/homeassistant/components/nx584/binary_sensor.py
+++ b/homeassistant/components/nx584/binary_sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.const import (CONF_HOST, CONF_PORT)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pynx584==0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_EXCLUDE_ZONES = 'exclude_zones'
diff --git a/homeassistant/components/oasa_telematics/sensor.py b/homeassistant/components/oasa_telematics/sensor.py
index 665f2f83f86af7..60c2f9a231b991 100644
--- a/homeassistant/components/oasa_telematics/sensor.py
+++ b/homeassistant/components/oasa_telematics/sensor.py
@@ -12,7 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import dt as dt_util
 
-REQUIREMENTS = ['oasatelematics==0.3']
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_STOP_ID = 'stop_id'
diff --git a/homeassistant/components/octoprint/binary_sensor.py b/homeassistant/components/octoprint/binary_sensor.py
index be3381f3bc8a2e..d505c88071ee3d 100644
--- a/homeassistant/components/octoprint/binary_sensor.py
+++ b/homeassistant/components/octoprint/binary_sensor.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['octoprint']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the available OctoPrint binary sensors."""
diff --git a/homeassistant/components/octoprint/sensor.py b/homeassistant/components/octoprint/sensor.py
index f07d88d11da3ff..979f56290c16d6 100644
--- a/homeassistant/components/octoprint/sensor.py
+++ b/homeassistant/components/octoprint/sensor.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['octoprint']
-
 NOTIFICATION_ID = 'octoprint_notification'
 NOTIFICATION_TITLE = 'OctoPrint sensor setup error'
 
diff --git a/homeassistant/components/oem/climate.py b/homeassistant/components/oem/climate.py
index f1e03396b05002..3ae9b4dad5c93e 100644
--- a/homeassistant/components/oem/climate.py
+++ b/homeassistant/components/oem/climate.py
@@ -21,8 +21,6 @@
     CONF_PORT, TEMP_CELSIUS, CONF_NAME)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['oemthermostat==1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_AWAY_TEMP = 'away_temp'
diff --git a/homeassistant/components/ohmconnect/sensor.py b/homeassistant/components/ohmconnect/sensor.py
index 1d870e4d15a12c..87dca2aa853b09 100644
--- a/homeassistant/components/ohmconnect/sensor.py
+++ b/homeassistant/components/ohmconnect/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.util import Throttle
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['defusedxml==0.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ID = 'id'
diff --git a/homeassistant/components/onboarding/__init__.py b/homeassistant/components/onboarding/__init__.py
index f8885962ee7174..29371369c70506 100644
--- a/homeassistant/components/onboarding/__init__.py
+++ b/homeassistant/components/onboarding/__init__.py
@@ -4,8 +4,6 @@
 
 from .const import DOMAIN, STEP_USER, STEPS
 
-DEPENDENCIES = ['auth', 'http']
-
 STORAGE_KEY = DOMAIN
 STORAGE_VERSION = 1
 
diff --git a/homeassistant/components/onkyo/media_player.py b/homeassistant/components/onkyo/media_player.py
index 64b9684c58c4ec..0a8a459731e13f 100644
--- a/homeassistant/components/onkyo/media_player.py
+++ b/homeassistant/components/onkyo/media_player.py
@@ -16,8 +16,6 @@
     CONF_HOST, CONF_NAME, STATE_OFF, STATE_ON, ATTR_ENTITY_ID)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['onkyo-eiscp==1.2.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_SOURCES = 'sources'
diff --git a/homeassistant/components/onvif/camera.py b/homeassistant/components/onvif/camera.py
index 90222b9cafc06b..6a773a854c9809 100644
--- a/homeassistant/components/onvif/camera.py
+++ b/homeassistant/components/onvif/camera.py
@@ -20,10 +20,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['onvif-py3==0.1.3',
-                'suds-py3==1.3.3.0',
-                'suds-passworddigest-homeassistant==0.1.2a0.dev0']
-DEPENDENCIES = ['ffmpeg']
 DEFAULT_NAME = 'ONVIF Camera'
 DEFAULT_PORT = 5000
 DEFAULT_USERNAME = 'admin'
diff --git a/homeassistant/components/opencv/image_processing.py b/homeassistant/components/opencv/image_processing.py
index 10173cdb725c8b..4a28a37b7056d4 100644
--- a/homeassistant/components/opencv/image_processing.py
+++ b/homeassistant/components/opencv/image_processing.py
@@ -11,8 +11,6 @@
 from homeassistant.core import split_entity_id
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['numpy==1.16.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_MATCHES = 'matches'
diff --git a/homeassistant/components/openevse/sensor.py b/homeassistant/components/openevse/sensor.py
index e54b47236c5fe3..efc4f8a020049a 100644
--- a/homeassistant/components/openevse/sensor.py
+++ b/homeassistant/components/openevse/sensor.py
@@ -11,8 +11,6 @@
     CONF_MONITORED_VARIABLES)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['openevsewifi==0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 SENSOR_TYPES = {
diff --git a/homeassistant/components/openhome/media_player.py b/homeassistant/components/openhome/media_player.py
index 03926bce8c5ce8..edb033b8f11c91 100644
--- a/homeassistant/components/openhome/media_player.py
+++ b/homeassistant/components/openhome/media_player.py
@@ -10,8 +10,6 @@
 from homeassistant.const import (
     STATE_IDLE, STATE_OFF, STATE_PAUSED, STATE_PLAYING)
 
-REQUIREMENTS = ['openhomedevice==0.4.2']
-
 SUPPORT_OPENHOME = SUPPORT_SELECT_SOURCE | \
     SUPPORT_VOLUME_STEP | SUPPORT_VOLUME_MUTE | SUPPORT_VOLUME_SET | \
     SUPPORT_TURN_OFF | SUPPORT_TURN_ON
diff --git a/homeassistant/components/opensensemap/air_quality.py b/homeassistant/components/opensensemap/air_quality.py
index 5407f65a1d822f..3f859724fc32d6 100644
--- a/homeassistant/components/opensensemap/air_quality.py
+++ b/homeassistant/components/opensensemap/air_quality.py
@@ -11,8 +11,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['opensensemap-api==0.1.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = 'Data provided by openSenseMap'
diff --git a/homeassistant/components/opentherm_gw/__init__.py b/homeassistant/components/opentherm_gw/__init__.py
index 1476363c6bd877..829344fb1f0804 100644
--- a/homeassistant/components/opentherm_gw/__init__.py
+++ b/homeassistant/components/opentherm_gw/__init__.py
@@ -15,8 +15,6 @@
 
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyotgw==0.4b3']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'opentherm_gw'
diff --git a/homeassistant/components/opentherm_gw/binary_sensor.py b/homeassistant/components/opentherm_gw/binary_sensor.py
index d0b60a257705a6..bf342cc9813b87 100644
--- a/homeassistant/components/opentherm_gw/binary_sensor.py
+++ b/homeassistant/components/opentherm_gw/binary_sensor.py
@@ -14,8 +14,6 @@
 DEVICE_CLASS_HEAT = 'heat'
 DEVICE_CLASS_PROBLEM = 'problem'
 
-DEPENDENCIES = ['opentherm_gw']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/opentherm_gw/climate.py b/homeassistant/components/opentherm_gw/climate.py
index 60f1901d43e96d..2dbd7f3cf799ef 100644
--- a/homeassistant/components/opentherm_gw/climate.py
+++ b/homeassistant/components/opentherm_gw/climate.py
@@ -15,8 +15,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['opentherm_gw']
-
 SUPPORT_FLAGS = SUPPORT_TARGET_TEMPERATURE
 
 
diff --git a/homeassistant/components/opentherm_gw/sensor.py b/homeassistant/components/opentherm_gw/sensor.py
index 5c64b8ab719b02..60ccedfd45134a 100644
--- a/homeassistant/components/opentherm_gw/sensor.py
+++ b/homeassistant/components/opentherm_gw/sensor.py
@@ -16,8 +16,6 @@
 UNIT_L_MIN = 'L/min'
 UNIT_PERCENT = '%'
 
-DEPENDENCIES = ['opentherm_gw']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/openuv/__init__.py b/homeassistant/components/openuv/__init__.py
index 5533beb2faed4b..8e8401bbeac36c 100644
--- a/homeassistant/components/openuv/__init__.py
+++ b/homeassistant/components/openuv/__init__.py
@@ -15,8 +15,6 @@
 from .config_flow import configured_instances
 from .const import DOMAIN
 
-REQUIREMENTS = ['pyopenuv==1.0.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_OPENUV_CLIENT = 'data_client'
diff --git a/homeassistant/components/openuv/binary_sensor.py b/homeassistant/components/openuv/binary_sensor.py
index cfc82a7572954d..d02312f07f8e88 100644
--- a/homeassistant/components/openuv/binary_sensor.py
+++ b/homeassistant/components/openuv/binary_sensor.py
@@ -16,8 +16,6 @@
 ATTR_PROTECTION_WINDOW_STARTING_TIME = 'start_time'
 ATTR_PROTECTION_WINDOW_STARTING_UV = 'start_uv'
 
-DEPENDENCIES = ['openuv']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/openuv/sensor.py b/homeassistant/components/openuv/sensor.py
index 42780d57b3c252..2fa2e44c98ef6b 100644
--- a/homeassistant/components/openuv/sensor.py
+++ b/homeassistant/components/openuv/sensor.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['openuv']
-
 ATTR_MAX_UV_TIME = 'time'
 
 EXPOSURE_TYPE_MAP = {
diff --git a/homeassistant/components/openweathermap/sensor.py b/homeassistant/components/openweathermap/sensor.py
index 5de67721e3057f..97ab9984d5274e 100644
--- a/homeassistant/components/openweathermap/sensor.py
+++ b/homeassistant/components/openweathermap/sensor.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pyowm==2.10.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by OpenWeatherMap"
diff --git a/homeassistant/components/openweathermap/weather.py b/homeassistant/components/openweathermap/weather.py
index 8a37bc97575180..75755a53124590 100644
--- a/homeassistant/components/openweathermap/weather.py
+++ b/homeassistant/components/openweathermap/weather.py
@@ -14,8 +14,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 from homeassistant.util.pressure import convert as convert_pressure
-REQUIREMENTS = ['pyowm==2.10.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = 'Data provided by OpenWeatherMap'
diff --git a/homeassistant/components/opple/light.py b/homeassistant/components/opple/light.py
index 03e36dc179d43b..c3d66c5266308b 100644
--- a/homeassistant/components/opple/light.py
+++ b/homeassistant/components/opple/light.py
@@ -14,8 +14,6 @@
 from homeassistant.util.color import \
     color_temperature_mired_to_kelvin as mired_to_kelvin
 
-REQUIREMENTS = ['pyoppleio==1.0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = "opple light"
diff --git a/homeassistant/components/orvibo/switch.py b/homeassistant/components/orvibo/switch.py
index c77e24446ec2a6..20b86dbf679b01 100644
--- a/homeassistant/components/orvibo/switch.py
+++ b/homeassistant/components/orvibo/switch.py
@@ -8,8 +8,6 @@
     CONF_HOST, CONF_NAME, CONF_SWITCHES, CONF_MAC, CONF_DISCOVERY)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['orvibo==1.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Orvibo S20 Switch'
diff --git a/homeassistant/components/osramlightify/light.py b/homeassistant/components/osramlightify/light.py
index b880273fd1e916..dafab76a2dcebe 100644
--- a/homeassistant/components/osramlightify/light.py
+++ b/homeassistant/components/osramlightify/light.py
@@ -15,8 +15,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-REQUIREMENTS = ['lightify==1.0.7.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ALLOW_LIGHTIFY_NODES = 'allow_lightify_nodes'
diff --git a/homeassistant/components/otp/sensor.py b/homeassistant/components/otp/sensor.py
index 2ac4c51998443e..0f79955db15678 100644
--- a/homeassistant/components/otp/sensor.py
+++ b/homeassistant/components/otp/sensor.py
@@ -10,8 +10,6 @@
 from homeassistant.const import (CONF_NAME, CONF_TOKEN)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pyotp==2.2.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'OTP Sensor'
diff --git a/homeassistant/components/owlet/__init__.py b/homeassistant/components/owlet/__init__.py
index b7ad7ab915240a..f19df6a3e38d85 100644
--- a/homeassistant/components/owlet/__init__.py
+++ b/homeassistant/components/owlet/__init__.py
@@ -11,8 +11,6 @@
     SENSOR_BASE_STATION, SENSOR_HEART_RATE, SENSOR_MOVEMENT,
     SENSOR_OXYGEN_LEVEL)
 
-REQUIREMENTS = ['pyowlet==1.0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'owlet'
diff --git a/homeassistant/components/owntracks/__init__.py b/homeassistant/components/owntracks/__init__.py
index df6b815e4c5be9..e746cbc01fa5fc 100644
--- a/homeassistant/components/owntracks/__init__.py
+++ b/homeassistant/components/owntracks/__init__.py
@@ -16,13 +16,9 @@
 
 from .config_flow import CONF_SECRET
 
-REQUIREMENTS = ['PyNaCl==1.3.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'owntracks'
-DEPENDENCIES = ['webhook']
-
 CONF_MAX_GPS_ACCURACY = 'max_gps_accuracy'
 CONF_WAYPOINT_IMPORT = 'waypoints'
 CONF_WAYPOINT_WHITELIST = 'waypoint_whitelist'
diff --git a/homeassistant/components/owntracks/device_tracker.py b/homeassistant/components/owntracks/device_tracker.py
index 69ea723d84c503..999e883be197eb 100644
--- a/homeassistant/components/owntracks/device_tracker.py
+++ b/homeassistant/components/owntracks/device_tracker.py
@@ -10,8 +10,6 @@
 
 from . import DOMAIN as OT_DOMAIN
 
-DEPENDENCIES = ['owntracks']
-
 _LOGGER = logging.getLogger(__name__)
 
 HANDLERS = decorator.Registry()
diff --git a/homeassistant/components/panasonic_bluray/media_player.py b/homeassistant/components/panasonic_bluray/media_player.py
index ebf71135d343f7..9da5cf87e534e2 100644
--- a/homeassistant/components/panasonic_bluray/media_player.py
+++ b/homeassistant/components/panasonic_bluray/media_player.py
@@ -14,8 +14,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util.dt import utcnow
 
-REQUIREMENTS = ['panacotta==0.1']
-
 DEFAULT_NAME = "Panasonic Blu-Ray"
 SCAN_INTERVAL = timedelta(seconds=30)
 
diff --git a/homeassistant/components/panasonic_viera/media_player.py b/homeassistant/components/panasonic_viera/media_player.py
index 324becd0bf756d..4669d4ecac6896 100644
--- a/homeassistant/components/panasonic_viera/media_player.py
+++ b/homeassistant/components/panasonic_viera/media_player.py
@@ -14,8 +14,6 @@
     CONF_HOST, CONF_MAC, CONF_NAME, CONF_PORT, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['panasonic_viera==0.3.2', 'wakeonlan==1.1.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_APP_POWER = 'app_power'
diff --git a/homeassistant/components/pandora/media_player.py b/homeassistant/components/pandora/media_player.py
index 32cde430d0e97b..14eb260914a2af 100644
--- a/homeassistant/components/pandora/media_player.py
+++ b/homeassistant/components/pandora/media_player.py
@@ -16,7 +16,6 @@
     SERVICE_MEDIA_PLAY_PAUSE, SERVICE_VOLUME_DOWN, SERVICE_VOLUME_UP,
     STATE_IDLE, STATE_OFF, STATE_PAUSED, STATE_PLAYING)
 
-REQUIREMENTS = ['pexpect==4.6.0']
 _LOGGER = logging.getLogger(__name__)
 
 # SUPPORT_VOLUME_SET is close to available but we need volume up/down
diff --git a/homeassistant/components/panel_custom/__init__.py b/homeassistant/components/panel_custom/__init__.py
index 7fe2191f4c497c..9367f102441808 100644
--- a/homeassistant/components/panel_custom/__init__.py
+++ b/homeassistant/components/panel_custom/__init__.py
@@ -10,8 +10,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'panel_custom'
-DEPENDENCIES = ['frontend']
-
 CONF_COMPONENT_NAME = 'name'
 CONF_SIDEBAR_TITLE = 'sidebar_title'
 CONF_SIDEBAR_ICON = 'sidebar_icon'
diff --git a/homeassistant/components/panel_iframe/__init__.py b/homeassistant/components/panel_iframe/__init__.py
index 9319dfcc6adb27..f4038c82f71880 100644
--- a/homeassistant/components/panel_iframe/__init__.py
+++ b/homeassistant/components/panel_iframe/__init__.py
@@ -4,8 +4,6 @@
 from homeassistant.const import CONF_ICON, CONF_URL
 import homeassistant.helpers.config_validation as cv
 
-DEPENDENCIES = ['frontend']
-
 DOMAIN = 'panel_iframe'
 
 CONF_TITLE = 'title'
diff --git a/homeassistant/components/pencom/switch.py b/homeassistant/components/pencom/switch.py
index d2c73d70d96deb..3fc65e73770f1d 100644
--- a/homeassistant/components/pencom/switch.py
+++ b/homeassistant/components/pencom/switch.py
@@ -12,8 +12,6 @@
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pencompy==0.0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_BOARDS = 'boards'
diff --git a/homeassistant/components/philips_js/media_player.py b/homeassistant/components/philips_js/media_player.py
index f5eddff8d138dc..859ad26a3ddd6c 100644
--- a/homeassistant/components/philips_js/media_player.py
+++ b/homeassistant/components/philips_js/media_player.py
@@ -15,8 +15,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.script import Script
 
-REQUIREMENTS = ['ha-philipsjs==0.0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=30)
diff --git a/homeassistant/components/pi_hole/sensor.py b/homeassistant/components/pi_hole/sensor.py
index 805e17ebdff418..061fb5c091f799 100644
--- a/homeassistant/components/pi_hole/sensor.py
+++ b/homeassistant/components/pi_hole/sensor.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['hole==0.3.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_BLOCKED_DOMAINS = 'domains_blocked'
diff --git a/homeassistant/components/piglow/light.py b/homeassistant/components/piglow/light.py
index dc3906b20026cd..52e5c769560c65 100644
--- a/homeassistant/components/piglow/light.py
+++ b/homeassistant/components/piglow/light.py
@@ -11,8 +11,6 @@
 from homeassistant.const import CONF_NAME
 import homeassistant.util.color as color_util
 
-REQUIREMENTS = ['piglow==1.2.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_PIGLOW = (SUPPORT_BRIGHTNESS | SUPPORT_COLOR)
diff --git a/homeassistant/components/pilight/__init__.py b/homeassistant/components/pilight/__init__.py
index 46be3b3720438b..b6f1a63d4d58fd 100644
--- a/homeassistant/components/pilight/__init__.py
+++ b/homeassistant/components/pilight/__init__.py
@@ -14,8 +14,6 @@
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP, CONF_HOST, CONF_PORT,
     CONF_WHITELIST, CONF_PROTOCOL)
 
-REQUIREMENTS = ['pilight==0.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_SEND_DELAY = 'send_delay'
diff --git a/homeassistant/components/pilight/binary_sensor.py b/homeassistant/components/pilight/binary_sensor.py
index 131a91b5fc3c0a..b9e95f76c491cd 100644
--- a/homeassistant/components/pilight/binary_sensor.py
+++ b/homeassistant/components/pilight/binary_sensor.py
@@ -26,8 +26,6 @@
 CONF_RESET_DELAY_SEC = 'reset_delay_sec'
 
 DEFAULT_NAME = 'Pilight Binary Sensor'
-DEPENDENCIES = ['pilight']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_VARIABLE): cv.string,
     vol.Required(CONF_PAYLOAD): vol.Schema(dict),
diff --git a/homeassistant/components/pilight/sensor.py b/homeassistant/components/pilight/sensor.py
index c36151c90dce26..a6be0f67f7cb55 100644
--- a/homeassistant/components/pilight/sensor.py
+++ b/homeassistant/components/pilight/sensor.py
@@ -15,8 +15,6 @@
 CONF_VARIABLE = 'variable'
 
 DEFAULT_NAME = 'Pilight Sensor'
-DEPENDENCIES = ['pilight']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_VARIABLE): cv.string,
     vol.Required(CONF_PAYLOAD): vol.Schema(dict),
diff --git a/homeassistant/components/pilight/switch.py b/homeassistant/components/pilight/switch.py
index d645d8e3013ce7..2f28e7f4d8aadf 100644
--- a/homeassistant/components/pilight/switch.py
+++ b/homeassistant/components/pilight/switch.py
@@ -21,8 +21,6 @@
 CONF_UNITCODE = 'unitcode'
 CONF_ECHO = 'echo'
 
-DEPENDENCIES = ['pilight']
-
 COMMAND_SCHEMA = vol.Schema({
     vol.Optional(CONF_PROTOCOL): cv.string,
     vol.Optional('on'): cv.positive_int,
diff --git a/homeassistant/components/pjlink/media_player.py b/homeassistant/components/pjlink/media_player.py
index ad7bdc9e77cb20..00a4d49bd5c977 100644
--- a/homeassistant/components/pjlink/media_player.py
+++ b/homeassistant/components/pjlink/media_player.py
@@ -12,8 +12,6 @@
     CONF_HOST, CONF_NAME, CONF_PASSWORD, CONF_PORT, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pypjlink2==1.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ENCODING = 'encoding'
diff --git a/homeassistant/components/plant/__init__.py b/homeassistant/components/plant/__init__.py
index 27324ad57a39a4..78f979892b1efb 100644
--- a/homeassistant/components/plant/__init__.py
+++ b/homeassistant/components/plant/__init__.py
@@ -89,8 +89,6 @@
 })
 
 DOMAIN = 'plant'
-DEPENDENCIES = ['zone', 'group']
-
 GROUP_NAME_ALL_PLANTS = 'all plants'
 ENTITY_ID_ALL_PLANTS = group.ENTITY_ID_FORMAT.format('all_plants')
 
diff --git a/homeassistant/components/plex/media_player.py b/homeassistant/components/plex/media_player.py
index f2af6836e3be4c..9ff00ed1c23a51 100644
--- a/homeassistant/components/plex/media_player.py
+++ b/homeassistant/components/plex/media_player.py
@@ -20,8 +20,6 @@
 from homeassistant.util import dt as dt_util
 from homeassistant.util.json import load_json, save_json
 
-REQUIREMENTS = ['plexapi==3.0.6']
-
 _CONFIGURING = {}
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/plex/sensor.py b/homeassistant/components/plex/sensor.py
index a3df6fdb41e8fd..4f46113347de37 100644
--- a/homeassistant/components/plex/sensor.py
+++ b/homeassistant/components/plex/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['plexapi==3.0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_SERVER = 'server'
diff --git a/homeassistant/components/plum_lightpad/__init__.py b/homeassistant/components/plum_lightpad/__init__.py
index 5b99223d25aed7..b08727e7acc50a 100644
--- a/homeassistant/components/plum_lightpad/__init__.py
+++ b/homeassistant/components/plum_lightpad/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['plumlightpad==0.0.11']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'plum_lightpad'
diff --git a/homeassistant/components/plum_lightpad/light.py b/homeassistant/components/plum_lightpad/light.py
index 233539560f4b8a..8923d3c5acc2e2 100644
--- a/homeassistant/components/plum_lightpad/light.py
+++ b/homeassistant/components/plum_lightpad/light.py
@@ -5,8 +5,6 @@
 
 from . import PLUM_DATA
 
-DEPENDENCIES = ['plum_lightpad']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/pocketcasts/sensor.py b/homeassistant/components/pocketcasts/sensor.py
index f09e90120049d9..69d863cb9e9121 100644
--- a/homeassistant/components/pocketcasts/sensor.py
+++ b/homeassistant/components/pocketcasts/sensor.py
@@ -10,8 +10,6 @@
 from homeassistant.const import (CONF_USERNAME, CONF_PASSWORD)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pocketcasts==0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ICON = 'mdi:rss'
diff --git a/homeassistant/components/point/__init__.py b/homeassistant/components/point/__init__.py
index dc839756469dd3..c0b2f7acd0fcd0 100644
--- a/homeassistant/components/point/__init__.py
+++ b/homeassistant/components/point/__init__.py
@@ -20,12 +20,8 @@
     CONF_WEBHOOK_URL, DOMAIN, EVENT_RECEIVED, POINT_DISCOVERY_NEW,
     SCAN_INTERVAL, SIGNAL_UPDATE_ENTITY, SIGNAL_WEBHOOK)
 
-REQUIREMENTS = ['pypoint==1.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['webhook']
-
 CONF_CLIENT_ID = 'client_id'
 CONF_CLIENT_SECRET = 'client_secret'
 
diff --git a/homeassistant/components/pollen/sensor.py b/homeassistant/components/pollen/sensor.py
index 3fc4d1fce3dd54..132155c7f65220 100644
--- a/homeassistant/components/pollen/sensor.py
+++ b/homeassistant/components/pollen/sensor.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['numpy==1.16.2', 'pypollencom==2.2.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ALLERGEN_AMOUNT = 'allergen_amount'
diff --git a/homeassistant/components/postnl/sensor.py b/homeassistant/components/postnl/sensor.py
index f9c8019cd31a00..d2380748c796e3 100644
--- a/homeassistant/components/postnl/sensor.py
+++ b/homeassistant/components/postnl/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['postnl_api==1.0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = 'Information provided by PostNL'
diff --git a/homeassistant/components/prezzibenzina/sensor.py b/homeassistant/components/prezzibenzina/sensor.py
index 525de7dad2f837..9814e9463df7c3 100644
--- a/homeassistant/components/prezzibenzina/sensor.py
+++ b/homeassistant/components/prezzibenzina/sensor.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers.config_validation import PLATFORM_SCHEMA
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['prezzibenzina-py==1.1.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_FUEL = 'fuel'
diff --git a/homeassistant/components/proliphix/climate.py b/homeassistant/components/proliphix/climate.py
index c165334201da2f..a6b4b3fd0f16c7 100644
--- a/homeassistant/components/proliphix/climate.py
+++ b/homeassistant/components/proliphix/climate.py
@@ -9,8 +9,6 @@
     ATTR_TEMPERATURE)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['proliphix==0.4.1']
-
 ATTR_FAN = 'fan'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/prometheus/__init__.py b/homeassistant/components/prometheus/__init__.py
index de0de8ae16241f..5119a5e0fdf47c 100644
--- a/homeassistant/components/prometheus/__init__.py
+++ b/homeassistant/components/prometheus/__init__.py
@@ -14,15 +14,11 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util.temperature import fahrenheit_to_celsius
 
-REQUIREMENTS = ['prometheus_client==0.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 API_ENDPOINT = '/api/prometheus'
 
 DOMAIN = 'prometheus'
-DEPENDENCIES = ['http']
-
 CONF_FILTER = 'filter'
 CONF_PROM_NAMESPACE = 'namespace'
 
diff --git a/homeassistant/components/proximity/__init__.py b/homeassistant/components/proximity/__init__.py
index 0a617bcec90116..c696c36f94c222 100644
--- a/homeassistant/components/proximity/__init__.py
+++ b/homeassistant/components/proximity/__init__.py
@@ -25,7 +25,6 @@
 DEFAULT_NEAREST = 'not set'
 DEFAULT_PROXIMITY_ZONE = 'home'
 DEFAULT_TOLERANCE = 1
-DEPENDENCIES = ['zone', 'device_tracker']
 DOMAIN = 'proximity'
 
 UNITS = ['km', 'm', 'mi', 'ft']
diff --git a/homeassistant/components/proxy/camera.py b/homeassistant/components/proxy/camera.py
index fda2cdea60ef8e..7c535e65bc8f3d 100644
--- a/homeassistant/components/proxy/camera.py
+++ b/homeassistant/components/proxy/camera.py
@@ -12,8 +12,6 @@
 from homeassistant.util.async_ import run_coroutine_threadsafe
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['pillow==5.4.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CACHE_IMAGES = 'cache_images'
diff --git a/homeassistant/components/ps4/__init__.py b/homeassistant/components/ps4/__init__.py
index 191eb223707d99..22c21fcffbed51 100644
--- a/homeassistant/components/ps4/__init__.py
+++ b/homeassistant/components/ps4/__init__.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pyps4-homeassistant==0.5.2']
-
 
 async def async_setup(hass, config):
     """Set up the PS4 Component."""
diff --git a/homeassistant/components/ps4/media_player.py b/homeassistant/components/ps4/media_player.py
index 4dc4fa0a317089..3382cd6fe43ba4 100644
--- a/homeassistant/components/ps4/media_player.py
+++ b/homeassistant/components/ps4/media_player.py
@@ -17,8 +17,6 @@
 
 from .const import DOMAIN as PS4_DOMAIN, REGIONS as deprecated_regions
 
-DEPENDENCIES = ['ps4']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_PS4 = SUPPORT_TURN_OFF | SUPPORT_TURN_ON | \
diff --git a/homeassistant/components/push/camera.py b/homeassistant/components/push/camera.py
index c0424f15898e58..c962aee91cad67 100644
--- a/homeassistant/components/push/camera.py
+++ b/homeassistant/components/push/camera.py
@@ -17,8 +17,6 @@
 from homeassistant.helpers.event import async_track_point_in_utc_time
 import homeassistant.util.dt as dt_util
 
-DEPENDENCIES = ['webhook']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_BUFFER_SIZE = 'buffer'
diff --git a/homeassistant/components/pushbullet/notify.py b/homeassistant/components/pushbullet/notify.py
index 3fc90161ae0cd9..d1d9a6449ef2a3 100644
--- a/homeassistant/components/pushbullet/notify.py
+++ b/homeassistant/components/pushbullet/notify.py
@@ -11,8 +11,6 @@
     ATTR_DATA, ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
     BaseNotificationService)
 
-REQUIREMENTS = ['pushbullet.py==0.11.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_URL = 'url'
diff --git a/homeassistant/components/pushbullet/sensor.py b/homeassistant/components/pushbullet/sensor.py
index c90f952e7de0d3..50fa407620a80c 100644
--- a/homeassistant/components/pushbullet/sensor.py
+++ b/homeassistant/components/pushbullet/sensor.py
@@ -8,8 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pushbullet.py==0.11.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 SENSOR_TYPES = {
diff --git a/homeassistant/components/pushetta/notify.py b/homeassistant/components/pushetta/notify.py
index 028b0cfd49212a..5c776523d1285d 100644
--- a/homeassistant/components/pushetta/notify.py
+++ b/homeassistant/components/pushetta/notify.py
@@ -10,8 +10,6 @@
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
 _LOGGER = logging.getLogger(__name__)
-REQUIREMENTS = ['pushetta==1.0.15']
-
 
 CONF_CHANNEL_NAME = 'channel_name'
 CONF_SEND_TEST_MSG = 'send_test_msg'
diff --git a/homeassistant/components/pushover/notify.py b/homeassistant/components/pushover/notify.py
index 39a1ce5d2f7fdb..d9be3428d59e10 100644
--- a/homeassistant/components/pushover/notify.py
+++ b/homeassistant/components/pushover/notify.py
@@ -10,7 +10,6 @@
     ATTR_DATA, ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
     BaseNotificationService)
 
-REQUIREMENTS = ['python-pushover==0.3']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/python_script/__init__.py b/homeassistant/components/python_script/__init__.py
index 56a82b3912054f..a6c7a87ae381f7 100644
--- a/homeassistant/components/python_script/__init__.py
+++ b/homeassistant/components/python_script/__init__.py
@@ -13,8 +13,6 @@
 from homeassistant.util import sanitize_filename
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['restrictedpython==4.0b8']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'python_script'
diff --git a/homeassistant/components/qbittorrent/sensor.py b/homeassistant/components/qbittorrent/sensor.py
index 7e91c0ab276ccd..eb2529f0221ce8 100644
--- a/homeassistant/components/qbittorrent/sensor.py
+++ b/homeassistant/components/qbittorrent/sensor.py
@@ -12,8 +12,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.exceptions import PlatformNotReady
 
-REQUIREMENTS = ['python-qbittorrent==0.3.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 SENSOR_TYPE_CURRENT_STATUS = 'current_status'
diff --git a/homeassistant/components/qnap/sensor.py b/homeassistant/components/qnap/sensor.py
index e12f20c25b1903..34eb850e4b1f31 100644
--- a/homeassistant/components/qnap/sensor.py
+++ b/homeassistant/components/qnap/sensor.py
@@ -13,8 +13,6 @@
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['qnapstats==0.2.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DRIVE = 'Drive'
diff --git a/homeassistant/components/qrcode/image_processing.py b/homeassistant/components/qrcode/image_processing.py
index 46fa78cca7f94f..e5836135512ff5 100644
--- a/homeassistant/components/qrcode/image_processing.py
+++ b/homeassistant/components/qrcode/image_processing.py
@@ -3,8 +3,6 @@
 from homeassistant.components.image_processing import (
     ImageProcessingEntity, CONF_SOURCE, CONF_ENTITY_ID, CONF_NAME)
 
-REQUIREMENTS = ['pyzbar==0.1.7', 'pillow==5.4.1']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the demo image processing platform."""
diff --git a/homeassistant/components/quantum_gateway/device_tracker.py b/homeassistant/components/quantum_gateway/device_tracker.py
index 3472a4dbb97677..e91fe99b7cdbbd 100644
--- a/homeassistant/components/quantum_gateway/device_tracker.py
+++ b/homeassistant/components/quantum_gateway/device_tracker.py
@@ -9,8 +9,6 @@
 from homeassistant.const import (CONF_HOST, CONF_PASSWORD, CONF_SSL)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['quantum-gateway==0.0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_HOST = 'myfiosgateway.com'
diff --git a/homeassistant/components/qwikswitch/__init__.py b/homeassistant/components/qwikswitch/__init__.py
index a64685956221fa..3940f055ff8e1d 100644
--- a/homeassistant/components/qwikswitch/__init__.py
+++ b/homeassistant/components/qwikswitch/__init__.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pyqwikswitch==0.93']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'qwikswitch'
diff --git a/homeassistant/components/qwikswitch/binary_sensor.py b/homeassistant/components/qwikswitch/binary_sensor.py
index a92c4d0b435e19..8042035b9c124e 100644
--- a/homeassistant/components/qwikswitch/binary_sensor.py
+++ b/homeassistant/components/qwikswitch/binary_sensor.py
@@ -6,8 +6,6 @@
 
 from . import DOMAIN as QWIKSWITCH, QSEntity
 
-DEPENDENCIES = [QWIKSWITCH]
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/qwikswitch/light.py b/homeassistant/components/qwikswitch/light.py
index cb4df24f9781df..1adcef56ffa3a7 100644
--- a/homeassistant/components/qwikswitch/light.py
+++ b/homeassistant/components/qwikswitch/light.py
@@ -3,8 +3,6 @@
 
 from . import DOMAIN as QWIKSWITCH, QSToggleEntity
 
-DEPENDENCIES = [QWIKSWITCH]
-
 
 async def async_setup_platform(hass, _, add_entities, discovery_info=None):
     """Add lights from the main Qwikswitch component."""
diff --git a/homeassistant/components/qwikswitch/sensor.py b/homeassistant/components/qwikswitch/sensor.py
index 8befce4f7e2a3f..047ec3475a575f 100644
--- a/homeassistant/components/qwikswitch/sensor.py
+++ b/homeassistant/components/qwikswitch/sensor.py
@@ -5,8 +5,6 @@
 
 from . import DOMAIN as QWIKSWITCH, QSEntity
 
-DEPENDENCIES = [QWIKSWITCH]
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/qwikswitch/switch.py b/homeassistant/components/qwikswitch/switch.py
index 4ee5396ae0ce3c..2d970a59a2a3a7 100644
--- a/homeassistant/components/qwikswitch/switch.py
+++ b/homeassistant/components/qwikswitch/switch.py
@@ -3,8 +3,6 @@
 
 from . import DOMAIN as QWIKSWITCH, QSToggleEntity
 
-DEPENDENCIES = [QWIKSWITCH]
-
 
 async def async_setup_platform(hass, _, add_entities, discovery_info=None):
     """Add switches from the main Qwikswitch component."""
diff --git a/homeassistant/components/rachio/__init__.py b/homeassistant/components/rachio/__init__.py
index 64a7a5af4d7412..1452fc6a506eb3 100644
--- a/homeassistant/components/rachio/__init__.py
+++ b/homeassistant/components/rachio/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers import discovery, config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 
-REQUIREMENTS = ['rachiopy==0.1.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'rachio'
diff --git a/homeassistant/components/rachio/binary_sensor.py b/homeassistant/components/rachio/binary_sensor.py
index ffcaeccacff455..ade930b00bc4fb 100644
--- a/homeassistant/components/rachio/binary_sensor.py
+++ b/homeassistant/components/rachio/binary_sensor.py
@@ -10,8 +10,6 @@
     SIGNAL_RACHIO_CONTROLLER_UPDATE, STATUS_OFFLINE, STATUS_ONLINE,
     SUBTYPE_OFFLINE, SUBTYPE_ONLINE)
 
-DEPENDENCIES = ['rachio']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/rachio/switch.py b/homeassistant/components/rachio/switch.py
index 483e07e96f4ef3..1b650d7281a94d 100644
--- a/homeassistant/components/rachio/switch.py
+++ b/homeassistant/components/rachio/switch.py
@@ -13,8 +13,6 @@
     SIGNAL_RACHIO_ZONE_UPDATE, SUBTYPE_SLEEP_MODE_OFF, SUBTYPE_SLEEP_MODE_ON,
     SUBTYPE_ZONE_COMPLETED, SUBTYPE_ZONE_STARTED, SUBTYPE_ZONE_STOPPED)
 
-DEPENDENCIES = ['rachio']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ZONE_SUMMARY = 'Summary'
diff --git a/homeassistant/components/radiotherm/climate.py b/homeassistant/components/radiotherm/climate.py
index 66dfc4cc385529..57cbfc031d7f9a 100644
--- a/homeassistant/components/radiotherm/climate.py
+++ b/homeassistant/components/radiotherm/climate.py
@@ -14,8 +14,6 @@
     STATE_OFF)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['radiotherm==2.0.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_FAN = 'fan'
diff --git a/homeassistant/components/rainbird/__init__.py b/homeassistant/components/rainbird/__init__.py
index de0f42fda4a6b8..410fdcd92739aa 100644
--- a/homeassistant/components/rainbird/__init__.py
+++ b/homeassistant/components/rainbird/__init__.py
@@ -6,8 +6,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.const import (CONF_HOST, CONF_PASSWORD)
 
-REQUIREMENTS = ['pyrainbird==0.1.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_RAINBIRD = 'rainbird'
diff --git a/homeassistant/components/rainbird/sensor.py b/homeassistant/components/rainbird/sensor.py
index 0cee202ecb20c8..5fdf116af9d228 100644
--- a/homeassistant/components/rainbird/sensor.py
+++ b/homeassistant/components/rainbird/sensor.py
@@ -10,8 +10,6 @@
 
 from . import DATA_RAINBIRD
 
-DEPENDENCIES = ['rainbird']
-
 _LOGGER = logging.getLogger(__name__)
 
 # sensor_type [ description, unit, icon ]
diff --git a/homeassistant/components/rainbird/switch.py b/homeassistant/components/rainbird/switch.py
index 32c7c49ab99b7d..3ade3bdeadd54c 100644
--- a/homeassistant/components/rainbird/switch.py
+++ b/homeassistant/components/rainbird/switch.py
@@ -12,8 +12,6 @@
 
 from . import DATA_RAINBIRD
 
-DEPENDENCIES = ['rainbird']
-
 DOMAIN = 'rainbird'
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/raincloud/__init__.py b/homeassistant/components/raincloud/__init__.py
index c94315f673d9ec..e3b1a77cfa7a3a 100644
--- a/homeassistant/components/raincloud/__init__.py
+++ b/homeassistant/components/raincloud/__init__.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['raincloudy==0.0.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 ALLOWED_WATERING_TIME = [5, 10, 15, 30, 45, 60]
diff --git a/homeassistant/components/raincloud/binary_sensor.py b/homeassistant/components/raincloud/binary_sensor.py
index 6ebad7cc121819..37c6798916931d 100644
--- a/homeassistant/components/raincloud/binary_sensor.py
+++ b/homeassistant/components/raincloud/binary_sensor.py
@@ -10,8 +10,6 @@
 
 from . import BINARY_SENSORS, DATA_RAINCLOUD, ICON_MAP, RainCloudEntity
 
-DEPENDENCIES = ['raincloud']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/raincloud/sensor.py b/homeassistant/components/raincloud/sensor.py
index 6774d48ae99860..cf0c11e22f6d8d 100644
--- a/homeassistant/components/raincloud/sensor.py
+++ b/homeassistant/components/raincloud/sensor.py
@@ -10,8 +10,6 @@
 
 from . import DATA_RAINCLOUD, ICON_MAP, SENSORS, RainCloudEntity
 
-DEPENDENCIES = ['raincloud']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/raincloud/switch.py b/homeassistant/components/raincloud/switch.py
index 3901e1e0bd89ce..e320a956f11800 100644
--- a/homeassistant/components/raincloud/switch.py
+++ b/homeassistant/components/raincloud/switch.py
@@ -11,8 +11,6 @@
     ALLOWED_WATERING_TIME, ATTRIBUTION, CONF_WATERING_TIME, DATA_RAINCLOUD,
     DEFAULT_WATERING_TIME, SWITCHES, RainCloudEntity)
 
-DEPENDENCIES = ['raincloud']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/rainmachine/__init__.py b/homeassistant/components/rainmachine/__init__.py
index 2ff5ddcd4aa2ea..f5875558a53ba1 100644
--- a/homeassistant/components/rainmachine/__init__.py
+++ b/homeassistant/components/rainmachine/__init__.py
@@ -22,8 +22,6 @@
 from .const import (
     DATA_CLIENT, DEFAULT_PORT, DEFAULT_SCAN_INTERVAL, DEFAULT_SSL, DOMAIN)
 
-REQUIREMENTS = ['regenmaschine==1.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_LISTENER = 'listener'
diff --git a/homeassistant/components/rainmachine/binary_sensor.py b/homeassistant/components/rainmachine/binary_sensor.py
index 4387e6b67bec05..fcccf11e17c4f5 100644
--- a/homeassistant/components/rainmachine/binary_sensor.py
+++ b/homeassistant/components/rainmachine/binary_sensor.py
@@ -11,7 +11,6 @@
     TYPE_HOURLY, TYPE_MONTH, TYPE_RAINDELAY, TYPE_RAINSENSOR, TYPE_WEEKDAY,
     RainMachineEntity)
 
-DEPENDENCIES = ['rainmachine']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/rainmachine/sensor.py b/homeassistant/components/rainmachine/sensor.py
index 1d438b8035f8e2..08dd67755bb5aa 100644
--- a/homeassistant/components/rainmachine/sensor.py
+++ b/homeassistant/components/rainmachine/sensor.py
@@ -8,7 +8,6 @@
     DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN, SENSOR_UPDATE_TOPIC, SENSORS,
     RainMachineEntity)
 
-DEPENDENCIES = ['rainmachine']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/rainmachine/switch.py b/homeassistant/components/rainmachine/switch.py
index adcbe5598199f0..2023f1e8f5c3ce 100644
--- a/homeassistant/components/rainmachine/switch.py
+++ b/homeassistant/components/rainmachine/switch.py
@@ -12,8 +12,6 @@
     DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN, PROGRAM_UPDATE_TOPIC,
     ZONE_UPDATE_TOPIC, RainMachineEntity)
 
-DEPENDENCIES = ['rainmachine']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_NEXT_RUN = 'next_run'
diff --git a/homeassistant/components/raspihats/__init__.py b/homeassistant/components/raspihats/__init__.py
index 622b98223aad66..3b37d48c87626e 100644
--- a/homeassistant/components/raspihats/__init__.py
+++ b/homeassistant/components/raspihats/__init__.py
@@ -6,8 +6,6 @@
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-REQUIREMENTS = ['raspihats==2.2.3', 'smbus-cffi==0.5.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'raspihats'
diff --git a/homeassistant/components/raspihats/binary_sensor.py b/homeassistant/components/raspihats/binary_sensor.py
index 29fa474f781270..beaf66334c3b8f 100644
--- a/homeassistant/components/raspihats/binary_sensor.py
+++ b/homeassistant/components/raspihats/binary_sensor.py
@@ -15,8 +15,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['raspihats']
-
 DEFAULT_INVERT_LOGIC = False
 DEFAULT_DEVICE_CLASS = None
 
diff --git a/homeassistant/components/raspihats/switch.py b/homeassistant/components/raspihats/switch.py
index 93538682ad8341..082c8f72811a73 100644
--- a/homeassistant/components/raspihats/switch.py
+++ b/homeassistant/components/raspihats/switch.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['raspihats']
-
 _CHANNELS_SCHEMA = vol.Schema([{
     vol.Required(CONF_INDEX): cv.positive_int,
     vol.Required(CONF_NAME): cv.string,
diff --git a/homeassistant/components/raspyrfm/switch.py b/homeassistant/components/raspyrfm/switch.py
index a141721f3e5299..9c44fc850c74c3 100644
--- a/homeassistant/components/raspyrfm/switch.py
+++ b/homeassistant/components/raspyrfm/switch.py
@@ -9,7 +9,6 @@
     DEVICE_DEFAULT_NAME)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['raspyrfm-client==1.2.8']
 _LOGGER = logging.getLogger(__name__)
 
 CONF_GATEWAY_MANUFACTURER = 'gateway_manufacturer'
diff --git a/homeassistant/components/recollect_waste/sensor.py b/homeassistant/components/recollect_waste/sensor.py
index 1e3803ab866020..7112d22c00b090 100644
--- a/homeassistant/components/recollect_waste/sensor.py
+++ b/homeassistant/components/recollect_waste/sensor.py
@@ -8,8 +8,6 @@
 from homeassistant.const import (CONF_NAME)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['recollect-waste==1.0.1']
-
 _LOGGER = logging.getLogger(__name__)
 ATTR_PICKUP_TYPES = 'pickup_types'
 ATTR_AREA_NAME = 'area_name'
diff --git a/homeassistant/components/recorder/__init__.py b/homeassistant/components/recorder/__init__.py
index 0df1fa42ad4913..97654b21c6deb0 100644
--- a/homeassistant/components/recorder/__init__.py
+++ b/homeassistant/components/recorder/__init__.py
@@ -25,8 +25,6 @@
 from .const import DATA_INSTANCE
 from .util import session_scope
 
-REQUIREMENTS = ['sqlalchemy==1.3.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'recorder'
diff --git a/homeassistant/components/recswitch/switch.py b/homeassistant/components/recswitch/switch.py
index ed2da8022f8a1e..c43064c56749a3 100644
--- a/homeassistant/components/recswitch/switch.py
+++ b/homeassistant/components/recswitch/switch.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pyrecswitch==1.0.2']
-
 DEFAULT_NAME = 'RecSwitch {0}'
 
 DATA_RSN = 'RSN'
diff --git a/homeassistant/components/reddit/sensor.py b/homeassistant/components/reddit/sensor.py
index 3ba43196551028..512fca71599444 100644
--- a/homeassistant/components/reddit/sensor.py
+++ b/homeassistant/components/reddit/sensor.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['praw==6.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CLIENT_ID = 'client_id'
diff --git a/homeassistant/components/rejseplanen/sensor.py b/homeassistant/components/rejseplanen/sensor.py
index 7a8cddb6179096..0c611e2c1e4459 100755
--- a/homeassistant/components/rejseplanen/sensor.py
+++ b/homeassistant/components/rejseplanen/sensor.py
@@ -19,7 +19,6 @@
 from homeassistant.const import CONF_NAME, ATTR_ATTRIBUTION
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['rjpl==0.3.5']
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_STOP_ID = 'Stop ID'
diff --git a/homeassistant/components/remember_the_milk/__init__.py b/homeassistant/components/remember_the_milk/__init__.py
index 82619e35a0ebc2..93f28b527ba862 100644
--- a/homeassistant/components/remember_the_milk/__init__.py
+++ b/homeassistant/components/remember_the_milk/__init__.py
@@ -13,8 +13,6 @@
 
 # httplib2 is a transitive dependency from RtmAPI. If this dependency is not
 # set explicitly, the library does not work.
-REQUIREMENTS = ['RtmAPI==0.7.0', 'httplib2==0.10.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'remember_the_milk'
diff --git a/homeassistant/components/remote/__init__.py b/homeassistant/components/remote/__init__.py
index de79adc9f0e6b5..f08abf5fd4a4cd 100644
--- a/homeassistant/components/remote/__init__.py
+++ b/homeassistant/components/remote/__init__.py
@@ -26,7 +26,6 @@
 ATTR_HOLD_SECS = 'hold_secs'
 
 DOMAIN = 'remote'
-DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=30)
 
 ENTITY_ID_ALL_REMOTES = group.ENTITY_ID_FORMAT.format('all_remotes')
diff --git a/homeassistant/components/rflink/__init__.py b/homeassistant/components/rflink/__init__.py
index 98e80580fea604..1dbfd208c64f7e 100644
--- a/homeassistant/components/rflink/__init__.py
+++ b/homeassistant/components/rflink/__init__.py
@@ -18,8 +18,6 @@
     async_dispatcher_send, async_dispatcher_connect)
 from homeassistant.helpers.restore_state import RestoreEntity
 
-REQUIREMENTS = ['rflink==0.0.37']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_EVENT = 'event'
diff --git a/homeassistant/components/rflink/binary_sensor.py b/homeassistant/components/rflink/binary_sensor.py
index 4e487eb6e81577..ae9f282be0aa42 100644
--- a/homeassistant/components/rflink/binary_sensor.py
+++ b/homeassistant/components/rflink/binary_sensor.py
@@ -14,8 +14,6 @@
 CONF_OFF_DELAY = 'off_delay'
 DEFAULT_FORCE_UPDATE = False
 
-DEPENDENCIES = ['rflink']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/rflink/cover.py b/homeassistant/components/rflink/cover.py
index 409d27862f9c3f..d78fe8312e72c9 100644
--- a/homeassistant/components/rflink/cover.py
+++ b/homeassistant/components/rflink/cover.py
@@ -13,8 +13,6 @@
     CONF_GROUP, CONF_GROUP_ALIASES, CONF_NOGROUP_ALIASES,
     CONF_SIGNAL_REPETITIONS, DEVICE_DEFAULTS_SCHEMA, RflinkCommand)
 
-DEPENDENCIES = ['rflink']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/rflink/light.py b/homeassistant/components/rflink/light.py
index 112ed4b4f51203..d3ef73a09bb2e1 100644
--- a/homeassistant/components/rflink/light.py
+++ b/homeassistant/components/rflink/light.py
@@ -15,8 +15,6 @@
     CONF_SIGNAL_REPETITIONS, DATA_DEVICE_REGISTER, DEVICE_DEFAULTS_SCHEMA,
     EVENT_KEY_COMMAND, EVENT_KEY_ID, SwitchableRflinkDevice, remove_deprecated)
 
-DEPENDENCIES = ['rflink']
-
 _LOGGER = logging.getLogger(__name__)
 
 TYPE_DIMMABLE = 'dimmable'
diff --git a/homeassistant/components/rflink/sensor.py b/homeassistant/components/rflink/sensor.py
index c7498ece2416d8..1e3a18572ff1ed 100644
--- a/homeassistant/components/rflink/sensor.py
+++ b/homeassistant/components/rflink/sensor.py
@@ -15,8 +15,6 @@
     EVENT_KEY_UNIT, SIGNAL_AVAILABILITY, SIGNAL_HANDLE_EVENT, TMP_ENTITY,
     RflinkDevice, remove_deprecated)
 
-DEPENDENCIES = ['rflink']
-
 _LOGGER = logging.getLogger(__name__)
 
 SENSOR_ICONS = {
diff --git a/homeassistant/components/rflink/switch.py b/homeassistant/components/rflink/switch.py
index d5889c797f0e59..63f506cc13bc82 100644
--- a/homeassistant/components/rflink/switch.py
+++ b/homeassistant/components/rflink/switch.py
@@ -13,8 +13,6 @@
     CONF_NOGROUP_ALIASES, CONF_NOGROUP_ALIASSES, CONF_SIGNAL_REPETITIONS,
     DEVICE_DEFAULTS_SCHEMA, SwitchableRflinkDevice, remove_deprecated)
 
-DEPENDENCIES = ['rflink']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/rfxtrx/__init__.py b/homeassistant/components/rfxtrx/__init__.py
index 411f0538bde3db..f7e42ce43572f9 100644
--- a/homeassistant/components/rfxtrx/__init__.py
+++ b/homeassistant/components/rfxtrx/__init__.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import slugify
 
-REQUIREMENTS = ['pyRFXtrx==0.23']
-
 DOMAIN = 'rfxtrx'
 
 DEFAULT_SIGNAL_REPETITIONS = 1
diff --git a/homeassistant/components/rfxtrx/binary_sensor.py b/homeassistant/components/rfxtrx/binary_sensor.py
index d548897fb80ce1..ec32f12bc68e74 100644
--- a/homeassistant/components/rfxtrx/binary_sensor.py
+++ b/homeassistant/components/rfxtrx/binary_sensor.py
@@ -17,8 +17,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['rfxtrx']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_DEVICES, default={}): {
         cv.string: vol.Schema({
diff --git a/homeassistant/components/rfxtrx/cover.py b/homeassistant/components/rfxtrx/cover.py
index 7ac0e2aa43f912..a915c48818a598 100644
--- a/homeassistant/components/rfxtrx/cover.py
+++ b/homeassistant/components/rfxtrx/cover.py
@@ -10,8 +10,6 @@
     CONF_AUTOMATIC_ADD, CONF_DEVICES, CONF_FIRE_EVENT, CONF_SIGNAL_REPETITIONS,
     DEFAULT_SIGNAL_REPETITIONS)
 
-DEPENDENCIES = ['rfxtrx']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_DEVICES, default={}): {
         cv.string: vol.Schema({
diff --git a/homeassistant/components/rfxtrx/light.py b/homeassistant/components/rfxtrx/light.py
index 3320a67214e2bd..56f0c21117d25e 100644
--- a/homeassistant/components/rfxtrx/light.py
+++ b/homeassistant/components/rfxtrx/light.py
@@ -13,8 +13,6 @@
     CONF_AUTOMATIC_ADD, CONF_DEVICES, CONF_FIRE_EVENT, CONF_SIGNAL_REPETITIONS,
     DEFAULT_SIGNAL_REPETITIONS)
 
-DEPENDENCIES = ['rfxtrx']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/rfxtrx/sensor.py b/homeassistant/components/rfxtrx/sensor.py
index cc54320cb672eb..94d836fa45cd9f 100644
--- a/homeassistant/components/rfxtrx/sensor.py
+++ b/homeassistant/components/rfxtrx/sensor.py
@@ -14,8 +14,6 @@
     ATTR_DATA_TYPE, ATTR_FIRE_EVENT, CONF_AUTOMATIC_ADD, CONF_DATA_TYPE,
     CONF_DEVICES, CONF_FIRE_EVENT, DATA_TYPES)
 
-DEPENDENCIES = ['rfxtrx']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/rfxtrx/switch.py b/homeassistant/components/rfxtrx/switch.py
index 908c07ea745795..938b575eca0fe1 100644
--- a/homeassistant/components/rfxtrx/switch.py
+++ b/homeassistant/components/rfxtrx/switch.py
@@ -12,8 +12,6 @@
     CONF_AUTOMATIC_ADD, CONF_DEVICES, CONF_FIRE_EVENT, CONF_SIGNAL_REPETITIONS,
     DEFAULT_SIGNAL_REPETITIONS)
 
-DEPENDENCIES = ['rfxtrx']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/ring/__init__.py b/homeassistant/components/ring/__init__.py
index 74da7a9d542909..669e91a1302646 100644
--- a/homeassistant/components/ring/__init__.py
+++ b/homeassistant/components/ring/__init__.py
@@ -7,8 +7,6 @@
 from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['ring_doorbell==0.2.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by Ring.com"
diff --git a/homeassistant/components/ring/binary_sensor.py b/homeassistant/components/ring/binary_sensor.py
index 79de0424d85a85..a12954f6c299f7 100644
--- a/homeassistant/components/ring/binary_sensor.py
+++ b/homeassistant/components/ring/binary_sensor.py
@@ -12,8 +12,6 @@
 
 from . import ATTRIBUTION, DATA_RING, DEFAULT_ENTITY_NAMESPACE
 
-DEPENDENCIES = ['ring']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=10)
diff --git a/homeassistant/components/ring/camera.py b/homeassistant/components/ring/camera.py
index 18427b9b6f9788..2a680a63b789db 100644
--- a/homeassistant/components/ring/camera.py
+++ b/homeassistant/components/ring/camera.py
@@ -16,8 +16,6 @@
 
 CONF_FFMPEG_ARGUMENTS = 'ffmpeg_arguments'
 
-DEPENDENCIES = ['ring', 'ffmpeg']
-
 FORCE_REFRESH_INTERVAL = timedelta(minutes=45)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/ring/sensor.py b/homeassistant/components/ring/sensor.py
index c9cb2f1159a67f..8b36cf70ea30cf 100644
--- a/homeassistant/components/ring/sensor.py
+++ b/homeassistant/components/ring/sensor.py
@@ -13,8 +13,6 @@
 
 from . import ATTRIBUTION, DATA_RING, DEFAULT_ENTITY_NAMESPACE
 
-DEPENDENCIES = ['ring']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=30)
diff --git a/homeassistant/components/ripple/sensor.py b/homeassistant/components/ripple/sensor.py
index 54530571c3eab4..773a6d77f54fb0 100644
--- a/homeassistant/components/ripple/sensor.py
+++ b/homeassistant/components/ripple/sensor.py
@@ -8,8 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['python-ripple-api==0.0.3']
-
 ATTRIBUTION = "Data provided by ripple.com"
 
 DEFAULT_NAME = 'Ripple Balance'
diff --git a/homeassistant/components/ritassist/device_tracker.py b/homeassistant/components/ritassist/device_tracker.py
index 74bec1b871121f..69bf2454f860a0 100644
--- a/homeassistant/components/ritassist/device_tracker.py
+++ b/homeassistant/components/ritassist/device_tracker.py
@@ -9,8 +9,6 @@
 from homeassistant.const import CONF_USERNAME, CONF_PASSWORD
 from homeassistant.helpers.event import track_utc_time_change
 
-REQUIREMENTS = ['ritassist==0.9.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CLIENT_ID = 'client_id'
diff --git a/homeassistant/components/rmvtransport/sensor.py b/homeassistant/components/rmvtransport/sensor.py
index 7a3afb3f324bca..13d13281bb648f 100644
--- a/homeassistant/components/rmvtransport/sensor.py
+++ b/homeassistant/components/rmvtransport/sensor.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['PyRMVtransport==0.1.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_NEXT_DEPARTURE = 'next_departure'
diff --git a/homeassistant/components/rocketchat/notify.py b/homeassistant/components/rocketchat/notify.py
index e404114736a103..bbe02698c8e1a5 100644
--- a/homeassistant/components/rocketchat/notify.py
+++ b/homeassistant/components/rocketchat/notify.py
@@ -10,8 +10,6 @@
 from homeassistant.components.notify import (ATTR_DATA, PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-REQUIREMENTS = ['rocketchat-API==0.6.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 # pylint: disable=no-value-for-parameter
diff --git a/homeassistant/components/roku/__init__.py b/homeassistant/components/roku/__init__.py
index 89bb1a9acb8fbd..3444f8a3183fe2 100644
--- a/homeassistant/components/roku/__init__.py
+++ b/homeassistant/components/roku/__init__.py
@@ -8,8 +8,6 @@
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-roku==3.1.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'roku'
diff --git a/homeassistant/components/roku/media_player.py b/homeassistant/components/roku/media_player.py
index 3cf27af067433d..41eff531de373a 100644
--- a/homeassistant/components/roku/media_player.py
+++ b/homeassistant/components/roku/media_player.py
@@ -10,8 +10,6 @@
 from homeassistant.const import (CONF_HOST, STATE_HOME, STATE_IDLE,
                                  STATE_PLAYING)
 
-DEPENDENCIES = ['roku']
-
 DEFAULT_PORT = 8060
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/roku/remote.py b/homeassistant/components/roku/remote.py
index 5529918010cf45..59ecbe351adf0e 100644
--- a/homeassistant/components/roku/remote.py
+++ b/homeassistant/components/roku/remote.py
@@ -4,8 +4,6 @@
 from homeassistant.components import remote
 from homeassistant.const import (CONF_HOST)
 
-DEPENDENCIES = ['roku']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/roomba/vacuum.py b/homeassistant/components/roomba/vacuum.py
index fadbe2a82d5254..e9f62d3bc179e0 100644
--- a/homeassistant/components/roomba/vacuum.py
+++ b/homeassistant/components/roomba/vacuum.py
@@ -14,8 +14,6 @@
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['roombapy==1.3.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_BIN_FULL = 'bin_full'
diff --git a/homeassistant/components/route53/__init__.py b/homeassistant/components/route53/__init__.py
index 725dec8b8e54b2..43a7b75b94d8d9 100644
--- a/homeassistant/components/route53/__init__.py
+++ b/homeassistant/components/route53/__init__.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['boto3==1.9.16', 'ipify==1.0.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ACCESS_KEY_ID = 'aws_access_key_id'
diff --git a/homeassistant/components/rova/sensor.py b/homeassistant/components/rova/sensor.py
index 2c2c36b12457ad..dcdee08734cf48 100644
--- a/homeassistant/components/rova/sensor.py
+++ b/homeassistant/components/rova/sensor.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['rova==0.1.0']
-
 # Config for rova requests.
 CONF_ZIP_CODE = 'zip_code'
 CONF_HOUSE_NUMBER = 'house_number'
diff --git a/homeassistant/components/rpi_gpio/__init__.py b/homeassistant/components/rpi_gpio/__init__.py
index b5bd0796f160b8..e568281edb1cd4 100644
--- a/homeassistant/components/rpi_gpio/__init__.py
+++ b/homeassistant/components/rpi_gpio/__init__.py
@@ -4,8 +4,6 @@
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-REQUIREMENTS = ['RPi.GPIO==0.6.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'rpi_gpio'
diff --git a/homeassistant/components/rpi_gpio/binary_sensor.py b/homeassistant/components/rpi_gpio/binary_sensor.py
index 559ae9584049be..d9903350aa0fc3 100644
--- a/homeassistant/components/rpi_gpio/binary_sensor.py
+++ b/homeassistant/components/rpi_gpio/binary_sensor.py
@@ -20,8 +20,6 @@
 DEFAULT_INVERT_LOGIC = False
 DEFAULT_PULL_MODE = 'UP'
 
-DEPENDENCIES = ['rpi_gpio']
-
 _SENSORS_SCHEMA = vol.Schema({
     cv.positive_int: cv.string,
 })
diff --git a/homeassistant/components/rpi_gpio/cover.py b/homeassistant/components/rpi_gpio/cover.py
index 403f7ec6867afa..d841dec777eccf 100644
--- a/homeassistant/components/rpi_gpio/cover.py
+++ b/homeassistant/components/rpi_gpio/cover.py
@@ -23,8 +23,6 @@
 DEFAULT_STATE_PULL_MODE = 'UP'
 DEFAULT_INVERT_STATE = False
 DEFAULT_INVERT_RELAY = False
-DEPENDENCIES = ['rpi_gpio']
-
 _COVERS_SCHEMA = vol.All(
     cv.ensure_list,
     [
diff --git a/homeassistant/components/rpi_gpio/switch.py b/homeassistant/components/rpi_gpio/switch.py
index bdb79d03eec812..ba713e5d273845 100644
--- a/homeassistant/components/rpi_gpio/switch.py
+++ b/homeassistant/components/rpi_gpio/switch.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['rpi_gpio']
-
 CONF_PULL_MODE = 'pull_mode'
 CONF_PORTS = 'ports'
 CONF_INVERT_LOGIC = 'invert_logic'
diff --git a/homeassistant/components/rpi_gpio_pwm/light.py b/homeassistant/components/rpi_gpio_pwm/light.py
index b0b9ef1b763509..73ce2a67306444 100644
--- a/homeassistant/components/rpi_gpio_pwm/light.py
+++ b/homeassistant/components/rpi_gpio_pwm/light.py
@@ -11,8 +11,6 @@
 import homeassistant.util.color as color_util
 from homeassistant.helpers.restore_state import RestoreEntity
 
-REQUIREMENTS = ['pwmled==1.4.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_LEDS = 'leds'
diff --git a/homeassistant/components/rpi_pfio/__init__.py b/homeassistant/components/rpi_pfio/__init__.py
index b096d9fe98ab7d..8341ebffceeca8 100644
--- a/homeassistant/components/rpi_pfio/__init__.py
+++ b/homeassistant/components/rpi_pfio/__init__.py
@@ -4,8 +4,6 @@
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-REQUIREMENTS = ['pifacecommon==4.2.2', 'pifacedigitalio==3.0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'rpi_pfio'
diff --git a/homeassistant/components/rpi_pfio/binary_sensor.py b/homeassistant/components/rpi_pfio/binary_sensor.py
index 677ec3bb16f121..b298c3dc44a201 100644
--- a/homeassistant/components/rpi_pfio/binary_sensor.py
+++ b/homeassistant/components/rpi_pfio/binary_sensor.py
@@ -18,8 +18,6 @@
 DEFAULT_INVERT_LOGIC = False
 DEFAULT_SETTLE_TIME = 20
 
-DEPENDENCIES = ['rpi_pfio']
-
 PORT_SCHEMA = vol.Schema({
     vol.Optional(CONF_NAME): cv.string,
     vol.Optional(CONF_SETTLE_TIME, default=DEFAULT_SETTLE_TIME):
diff --git a/homeassistant/components/rpi_pfio/switch.py b/homeassistant/components/rpi_pfio/switch.py
index fc158bd666f97d..5a69ec8706f15b 100644
--- a/homeassistant/components/rpi_pfio/switch.py
+++ b/homeassistant/components/rpi_pfio/switch.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['rpi_pfio']
-
 ATTR_INVERT_LOGIC = 'invert_logic'
 
 CONF_PORTS = 'ports'
diff --git a/homeassistant/components/rpi_rf/switch.py b/homeassistant/components/rpi_rf/switch.py
index d0a2337280296d..6531e42bd23536 100644
--- a/homeassistant/components/rpi_rf/switch.py
+++ b/homeassistant/components/rpi_rf/switch.py
@@ -9,8 +9,6 @@
     CONF_NAME, CONF_SWITCHES, EVENT_HOMEASSISTANT_STOP)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['rpi-rf==0.9.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CODE_OFF = 'code_off'
diff --git a/homeassistant/components/rss_feed_template/__init__.py b/homeassistant/components/rss_feed_template/__init__.py
index 3c93fe2ac83593..1d82d40ba723e6 100644
--- a/homeassistant/components/rss_feed_template/__init__.py
+++ b/homeassistant/components/rss_feed_template/__init__.py
@@ -8,8 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 
 CONTENT_TYPE_XML = 'text/xml'
-DEPENDENCIES = ['http']
-
 DOMAIN = 'rss_feed_template'
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/russound_rio/media_player.py b/homeassistant/components/russound_rio/media_player.py
index b8f9d29f5cae81..e2462a2c2b42ca 100644
--- a/homeassistant/components/russound_rio/media_player.py
+++ b/homeassistant/components/russound_rio/media_player.py
@@ -14,8 +14,6 @@
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['russound_rio==0.1.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_RUSSOUND = SUPPORT_VOLUME_MUTE | SUPPORT_VOLUME_SET | \
diff --git a/homeassistant/components/russound_rnet/media_player.py b/homeassistant/components/russound_rnet/media_player.py
index f489d48a9d53f4..788b5da361bd16 100644
--- a/homeassistant/components/russound_rnet/media_player.py
+++ b/homeassistant/components/russound_rnet/media_player.py
@@ -12,8 +12,6 @@
     CONF_HOST, CONF_NAME, CONF_PORT, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['russound==0.1.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ZONES = 'zones'
diff --git a/homeassistant/components/ruter/sensor.py b/homeassistant/components/ruter/sensor.py
index f6fefc96198939..fd72d59dbea50b 100644
--- a/homeassistant/components/ruter/sensor.py
+++ b/homeassistant/components/ruter/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-REQUIREMENTS = ['pyruter==1.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_STOP_ID = 'stop_id'
diff --git a/homeassistant/components/sabnzbd/__init__.py b/homeassistant/components/sabnzbd/__init__.py
index d070872f85c442..4275765a1bf8b7 100644
--- a/homeassistant/components/sabnzbd/__init__.py
+++ b/homeassistant/components/sabnzbd/__init__.py
@@ -15,8 +15,6 @@
 from homeassistant.helpers.event import async_track_time_interval
 from homeassistant.util.json import load_json, save_json
 
-REQUIREMENTS = ['pysabnzbd==1.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'sabnzbd'
diff --git a/homeassistant/components/sabnzbd/sensor.py b/homeassistant/components/sabnzbd/sensor.py
index 4968725a4befc7..3c57a844431b69 100644
--- a/homeassistant/components/sabnzbd/sensor.py
+++ b/homeassistant/components/sabnzbd/sensor.py
@@ -6,8 +6,6 @@
 
 from . import DATA_SABNZBD, SENSOR_TYPES, SIGNAL_SABNZBD_UPDATED
 
-DEPENDENCIES = ['sabnzbd']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/samsungtv/media_player.py b/homeassistant/components/samsungtv/media_player.py
index 1a2a24c3621040..05921d7e84b07f 100644
--- a/homeassistant/components/samsungtv/media_player.py
+++ b/homeassistant/components/samsungtv/media_player.py
@@ -18,8 +18,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import dt as dt_util
 
-REQUIREMENTS = ['samsungctl[websocket]==0.7.1', 'wakeonlan==1.1.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Samsung TV Remote'
diff --git a/homeassistant/components/satel_integra/__init__.py b/homeassistant/components/satel_integra/__init__.py
index 5f5c43d961f552..2aae9ea8dd9a10 100644
--- a/homeassistant/components/satel_integra/__init__.py
+++ b/homeassistant/components/satel_integra/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 
-REQUIREMENTS = ['satel_integra==0.3.2']
-
 DEFAULT_ALARM_NAME = 'satel_integra'
 DEFAULT_PORT = 7094
 DEFAULT_CONF_ARM_HOME_MODE = 1
diff --git a/homeassistant/components/satel_integra/alarm_control_panel.py b/homeassistant/components/satel_integra/alarm_control_panel.py
index d2d9f47305100d..02e683bac5a164 100644
--- a/homeassistant/components/satel_integra/alarm_control_panel.py
+++ b/homeassistant/components/satel_integra/alarm_control_panel.py
@@ -16,8 +16,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['satel_integra']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/satel_integra/binary_sensor.py b/homeassistant/components/satel_integra/binary_sensor.py
index 0384ff37f14f01..faef1a6f45e51f 100644
--- a/homeassistant/components/satel_integra/binary_sensor.py
+++ b/homeassistant/components/satel_integra/binary_sensor.py
@@ -9,8 +9,6 @@
     CONF_OUTPUTS, CONF_ZONE_NAME, CONF_ZONE_TYPE, CONF_ZONES, DATA_SATEL,
     SIGNAL_OUTPUTS_UPDATED, SIGNAL_ZONES_UPDATED)
 
-DEPENDENCIES = ['satel_integra']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/scrape/sensor.py b/homeassistant/components/scrape/sensor.py
index e576eca78e872e..a5975d4f9d0b1e 100644
--- a/homeassistant/components/scrape/sensor.py
+++ b/homeassistant/components/scrape/sensor.py
@@ -15,8 +15,6 @@
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['beautifulsoup4==4.7.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ATTR = 'attribute'
diff --git a/homeassistant/components/script/__init__.py b/homeassistant/components/script/__init__.py
index 873a18120ac3ce..528e454c4e6e38 100644
--- a/homeassistant/components/script/__init__.py
+++ b/homeassistant/components/script/__init__.py
@@ -18,8 +18,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'script'
-DEPENDENCIES = ['group']
-
 ATTR_CAN_CANCEL = 'can_cancel'
 ATTR_LAST_ACTION = 'last_action'
 ATTR_LAST_TRIGGERED = 'last_triggered'
diff --git a/homeassistant/components/scsgate/__init__.py b/homeassistant/components/scsgate/__init__.py
index 67421e9a46ad44..ed84bc19ebe4fb 100644
--- a/homeassistant/components/scsgate/__init__.py
+++ b/homeassistant/components/scsgate/__init__.py
@@ -8,8 +8,6 @@
 from homeassistant.core import EVENT_HOMEASSISTANT_STOP
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['scsgate==0.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_STATE = 'state'
diff --git a/homeassistant/components/scsgate/cover.py b/homeassistant/components/scsgate/cover.py
index fc1c16e1ff36d5..d866b8ab80c64f 100644
--- a/homeassistant/components/scsgate/cover.py
+++ b/homeassistant/components/scsgate/cover.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['scsgate']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_DEVICES):
         cv.schema_with_slug_keys(scsgate.SCSGATE_SCHEMA),
diff --git a/homeassistant/components/scsgate/light.py b/homeassistant/components/scsgate/light.py
index 87d7e02b383d1d..f894d33e867927 100644
--- a/homeassistant/components/scsgate/light.py
+++ b/homeassistant/components/scsgate/light.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['scsgate']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_DEVICES):
         cv.schema_with_slug_keys(scsgate.SCSGATE_SCHEMA),
diff --git a/homeassistant/components/scsgate/switch.py b/homeassistant/components/scsgate/switch.py
index 2b2bf2de94fc5b..ad6362c9e0c40c 100644
--- a/homeassistant/components/scsgate/switch.py
+++ b/homeassistant/components/scsgate/switch.py
@@ -11,8 +11,6 @@
 
 ATTR_SCENARIO_ID = 'scenario_id'
 
-DEPENDENCIES = ['scsgate']
-
 CONF_TRADITIONAL = 'traditional'
 CONF_SCENARIO = 'scenario'
 
diff --git a/homeassistant/components/season/sensor.py b/homeassistant/components/season/sensor.py
index 7c7b1054961bf3..b31cf5083bf27e 100644
--- a/homeassistant/components/season/sensor.py
+++ b/homeassistant/components/season/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant import util
 
-REQUIREMENTS = ['ephem==3.7.6.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 NORTHERN = 'northern'
diff --git a/homeassistant/components/sendgrid/notify.py b/homeassistant/components/sendgrid/notify.py
index a717c7f24edb0d..563e47b8afe60e 100644
--- a/homeassistant/components/sendgrid/notify.py
+++ b/homeassistant/components/sendgrid/notify.py
@@ -10,8 +10,6 @@
 from homeassistant.components.notify import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
-REQUIREMENTS = ['sendgrid==5.6.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_SENDER_NAME = 'sender_name'
diff --git a/homeassistant/components/sense/__init__.py b/homeassistant/components/sense/__init__.py
index be3ab75b5553cd..7266b2fb1e5ab2 100644
--- a/homeassistant/components/sense/__init__.py
+++ b/homeassistant/components/sense/__init__.py
@@ -7,8 +7,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 
-REQUIREMENTS = ['sense_energy==0.7.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ACTIVE_UPDATE_RATE = 60
diff --git a/homeassistant/components/sense/binary_sensor.py b/homeassistant/components/sense/binary_sensor.py
index da9bae3cc84788..a0f65ac555a585 100644
--- a/homeassistant/components/sense/binary_sensor.py
+++ b/homeassistant/components/sense/binary_sensor.py
@@ -5,8 +5,6 @@
 
 from . import SENSE_DATA
 
-DEPENDENCIES = ['sense']
-
 _LOGGER = logging.getLogger(__name__)
 
 BIN_SENSOR_CLASS = 'power'
diff --git a/homeassistant/components/sense/sensor.py b/homeassistant/components/sense/sensor.py
index 0224884e18a5cd..e114132e0d7770 100644
--- a/homeassistant/components/sense/sensor.py
+++ b/homeassistant/components/sense/sensor.py
@@ -15,8 +15,6 @@
 
 CONSUMPTION_NAME = 'Usage'
 
-DEPENDENCIES = ['sense']
-
 ICON = 'mdi:flash'
 
 MIN_TIME_BETWEEN_DAILY_UPDATES = timedelta(seconds=300)
diff --git a/homeassistant/components/sensehat/light.py b/homeassistant/components/sensehat/light.py
index c68e77b40a4d8d..713dd1373fdfc5 100644
--- a/homeassistant/components/sensehat/light.py
+++ b/homeassistant/components/sensehat/light.py
@@ -10,8 +10,6 @@
 from homeassistant.const import CONF_NAME
 import homeassistant.util.color as color_util
 
-REQUIREMENTS = ['sense-hat==2.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_SENSEHAT = (SUPPORT_BRIGHTNESS | SUPPORT_COLOR)
diff --git a/homeassistant/components/sensehat/sensor.py b/homeassistant/components/sensehat/sensor.py
index 870150c1a987cd..a9a80ee22bacdf 100644
--- a/homeassistant/components/sensehat/sensor.py
+++ b/homeassistant/components/sensehat/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['sense-hat==2.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'sensehat'
diff --git a/homeassistant/components/sensibo/climate.py b/homeassistant/components/sensibo/climate.py
index bf06f232427a3f..d2f95dcee79318 100644
--- a/homeassistant/components/sensibo/climate.py
+++ b/homeassistant/components/sensibo/climate.py
@@ -21,8 +21,6 @@
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.util.temperature import convert as convert_temperature
 
-REQUIREMENTS = ['pysensibo==1.0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ALL = ['all']
diff --git a/homeassistant/components/serial/sensor.py b/homeassistant/components/serial/sensor.py
index c01981f90218a7..cebe9b42996dab 100644
--- a/homeassistant/components/serial/sensor.py
+++ b/homeassistant/components/serial/sensor.py
@@ -10,8 +10,6 @@
     CONF_NAME, CONF_VALUE_TEMPLATE, EVENT_HOMEASSISTANT_STOP)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pyserial-asyncio==0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_SERIAL_PORT = 'serial_port'
diff --git a/homeassistant/components/serial_pm/sensor.py b/homeassistant/components/serial_pm/sensor.py
index 9ad65f7256fa25..49e61bead056c3 100644
--- a/homeassistant/components/serial_pm/sensor.py
+++ b/homeassistant/components/serial_pm/sensor.py
@@ -8,8 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 
-REQUIREMENTS = ['pmsensor==0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_SERIAL_DEVICE = 'serial_device'
diff --git a/homeassistant/components/sesame/lock.py b/homeassistant/components/sesame/lock.py
index 263914f389cced..3882d8796c7099 100644
--- a/homeassistant/components/sesame/lock.py
+++ b/homeassistant/components/sesame/lock.py
@@ -9,8 +9,6 @@
     STATE_LOCKED, STATE_UNLOCKED)
 from homeassistant.helpers.typing import ConfigType
 
-REQUIREMENTS = ['pysesame==0.1.0']
-
 ATTR_DEVICE_ID = 'device_id'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/seventeentrack/sensor.py b/homeassistant/components/seventeentrack/sensor.py
index 8a242b7737da52..f9bae50698be79 100644
--- a/homeassistant/components/seventeentrack/sensor.py
+++ b/homeassistant/components/seventeentrack/sensor.py
@@ -12,7 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle, slugify
 
-REQUIREMENTS = ['py17track==2.2.2']
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DESTINATION_COUNTRY = 'destination_country'
diff --git a/homeassistant/components/shiftr/__init__.py b/homeassistant/components/shiftr/__init__.py
index 438bc36b1bf2de..df25365a9fb9a9 100644
--- a/homeassistant/components/shiftr/__init__.py
+++ b/homeassistant/components/shiftr/__init__.py
@@ -9,8 +9,6 @@
     EVENT_HOMEASSISTANT_STOP)
 from homeassistant.helpers import state as state_helper
 
-REQUIREMENTS = ['paho-mqtt==1.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'shiftr'
diff --git a/homeassistant/components/shodan/sensor.py b/homeassistant/components/shodan/sensor.py
index ee64eecf3fe02a..072742391b9000 100644
--- a/homeassistant/components/shodan/sensor.py
+++ b/homeassistant/components/shodan/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.const import ATTR_ATTRIBUTION, CONF_API_KEY, CONF_NAME
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['shodan==1.11.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by Shodan"
diff --git a/homeassistant/components/shopping_list/__init__.py b/homeassistant/components/shopping_list/__init__.py
index 1a036f3661aa38..cfcbfdd4224477 100644
--- a/homeassistant/components/shopping_list/__init__.py
+++ b/homeassistant/components/shopping_list/__init__.py
@@ -18,7 +18,6 @@
 ATTR_NAME = 'name'
 
 DOMAIN = 'shopping_list'
-DEPENDENCIES = ['http']
 _LOGGER = logging.getLogger(__name__)
 CONFIG_SCHEMA = vol.Schema({DOMAIN: {}}, extra=vol.ALLOW_EXTRA)
 EVENT = 'shopping_list_updated'
diff --git a/homeassistant/components/sht31/sensor.py b/homeassistant/components/sht31/sensor.py
index 613b1f8c92a16b..904a1af75c2bdc 100644
--- a/homeassistant/components/sht31/sensor.py
+++ b/homeassistant/components/sht31/sensor.py
@@ -16,9 +16,6 @@
 from homeassistant.util import Throttle
 
 
-REQUIREMENTS = ['Adafruit-GPIO==1.0.3',
-                'Adafruit-SHT31==1.0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_I2C_ADDRESS = 'i2c_address'
diff --git a/homeassistant/components/simplepush/notify.py b/homeassistant/components/simplepush/notify.py
index 081351238d9d0e..38a61e439726e9 100644
--- a/homeassistant/components/simplepush/notify.py
+++ b/homeassistant/components/simplepush/notify.py
@@ -9,8 +9,6 @@
 from homeassistant.components.notify import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
-REQUIREMENTS = ['simplepush==1.1.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ENCRYPTED = 'encrypted'
diff --git a/homeassistant/components/simplisafe/__init__.py b/homeassistant/components/simplisafe/__init__.py
index 359591856a7917..36aa3ba54d98f1 100644
--- a/homeassistant/components/simplisafe/__init__.py
+++ b/homeassistant/components/simplisafe/__init__.py
@@ -19,8 +19,6 @@
 from .config_flow import configured_instances
 from .const import DATA_CLIENT, DEFAULT_SCAN_INTERVAL, DOMAIN, TOPIC_UPDATE
 
-REQUIREMENTS = ['simplisafe-python==3.4.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ACCOUNTS = 'accounts'
diff --git a/homeassistant/components/sisyphus/__init__.py b/homeassistant/components/sisyphus/__init__.py
index b1bec15d40e8ac..7cc8e3efd33a53 100644
--- a/homeassistant/components/sisyphus/__init__.py
+++ b/homeassistant/components/sisyphus/__init__.py
@@ -13,8 +13,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 
-REQUIREMENTS = ['sisyphus-control==2.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_SISYPHUS = 'sisyphus'
diff --git a/homeassistant/components/sisyphus/light.py b/homeassistant/components/sisyphus/light.py
index 182e5e78198dc1..8d882925796ad6 100644
--- a/homeassistant/components/sisyphus/light.py
+++ b/homeassistant/components/sisyphus/light.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['sisyphus']
-
 SUPPORTED_FEATURES = SUPPORT_BRIGHTNESS
 
 
diff --git a/homeassistant/components/sisyphus/media_player.py b/homeassistant/components/sisyphus/media_player.py
index 11546c3fd43822..65f5cb48e59b78 100644
--- a/homeassistant/components/sisyphus/media_player.py
+++ b/homeassistant/components/sisyphus/media_player.py
@@ -13,8 +13,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['sisyphus']
-
 MEDIA_TYPE_TRACK = 'sisyphus_track'
 
 SUPPORTED_FEATURES = SUPPORT_VOLUME_MUTE \
diff --git a/homeassistant/components/skybeacon/sensor.py b/homeassistant/components/skybeacon/sensor.py
index 9b8b4872cdce89..aa7eea0bcccc3e 100644
--- a/homeassistant/components/skybeacon/sensor.py
+++ b/homeassistant/components/skybeacon/sensor.py
@@ -11,8 +11,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pygatt[GATTTOOL]==3.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DEVICE = 'device'
diff --git a/homeassistant/components/skybell/__init__.py b/homeassistant/components/skybell/__init__.py
index 31d1339fbcfc88..51e12376a61d5e 100644
--- a/homeassistant/components/skybell/__init__.py
+++ b/homeassistant/components/skybell/__init__.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['skybellpy==0.3.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by Skybell.com"
diff --git a/homeassistant/components/skybell/binary_sensor.py b/homeassistant/components/skybell/binary_sensor.py
index 8c2b83552588c5..16b094dbf63089 100644
--- a/homeassistant/components/skybell/binary_sensor.py
+++ b/homeassistant/components/skybell/binary_sensor.py
@@ -12,8 +12,6 @@
 
 from . import DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice
 
-DEPENDENCIES = ['skybell']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=5)
diff --git a/homeassistant/components/skybell/camera.py b/homeassistant/components/skybell/camera.py
index 04b03f84bf751d..e11f7c48947a8a 100644
--- a/homeassistant/components/skybell/camera.py
+++ b/homeassistant/components/skybell/camera.py
@@ -11,8 +11,6 @@
 
 from . import DOMAIN as SKYBELL_DOMAIN, SkybellDevice
 
-DEPENDENCIES = ['skybell']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=90)
diff --git a/homeassistant/components/skybell/light.py b/homeassistant/components/skybell/light.py
index d413f9df4127dc..18108787e56b43 100644
--- a/homeassistant/components/skybell/light.py
+++ b/homeassistant/components/skybell/light.py
@@ -7,8 +7,6 @@
 
 from . import DOMAIN as SKYBELL_DOMAIN, SkybellDevice
 
-DEPENDENCIES = ['skybell']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/skybell/sensor.py b/homeassistant/components/skybell/sensor.py
index 067e850dfcf1dc..5188f75b6fa0fe 100644
--- a/homeassistant/components/skybell/sensor.py
+++ b/homeassistant/components/skybell/sensor.py
@@ -11,8 +11,6 @@
 
 from . import DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice
 
-DEPENDENCIES = ['skybell']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=30)
diff --git a/homeassistant/components/skybell/switch.py b/homeassistant/components/skybell/switch.py
index 674bbf22a08600..7771f1a87544c1 100644
--- a/homeassistant/components/skybell/switch.py
+++ b/homeassistant/components/skybell/switch.py
@@ -10,8 +10,6 @@
 
 from . import DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice
 
-DEPENDENCIES = ['skybell']
-
 _LOGGER = logging.getLogger(__name__)
 
 # Switch types: Name
diff --git a/homeassistant/components/slack/notify.py b/homeassistant/components/slack/notify.py
index 026fed0a58ebb2..600fdef94776ad 100644
--- a/homeassistant/components/slack/notify.py
+++ b/homeassistant/components/slack/notify.py
@@ -12,8 +12,6 @@
     ATTR_DATA, ATTR_TARGET, ATTR_TITLE, PLATFORM_SCHEMA,
     BaseNotificationService)
 
-REQUIREMENTS = ['slacker==0.12.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CHANNEL = 'default_channel'
diff --git a/homeassistant/components/sleepiq/__init__.py b/homeassistant/components/sleepiq/__init__.py
index 7a23c6c46095f8..97b2d53a03368b 100644
--- a/homeassistant/components/sleepiq/__init__.py
+++ b/homeassistant/components/sleepiq/__init__.py
@@ -13,8 +13,6 @@
 
 DOMAIN = 'sleepiq'
 
-REQUIREMENTS = ['sleepyq==0.6']
-
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=30)
 
 IS_IN_BED = 'is_in_bed'
diff --git a/homeassistant/components/sleepiq/binary_sensor.py b/homeassistant/components/sleepiq/binary_sensor.py
index 11f9e25d8c957e..cad5c9e42f1d60 100644
--- a/homeassistant/components/sleepiq/binary_sensor.py
+++ b/homeassistant/components/sleepiq/binary_sensor.py
@@ -2,8 +2,6 @@
 from homeassistant.components import sleepiq
 from homeassistant.components.binary_sensor import BinarySensorDevice
 
-DEPENDENCIES = ['sleepiq']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the SleepIQ sensors."""
diff --git a/homeassistant/components/sleepiq/sensor.py b/homeassistant/components/sleepiq/sensor.py
index 3de444c332452d..c92c463ea24070 100644
--- a/homeassistant/components/sleepiq/sensor.py
+++ b/homeassistant/components/sleepiq/sensor.py
@@ -1,7 +1,6 @@
 """Support for SleepIQ sensors."""
 from homeassistant.components import sleepiq
 
-DEPENDENCIES = ['sleepiq']
 ICON = 'mdi:hotel'
 
 
diff --git a/homeassistant/components/sma/sensor.py b/homeassistant/components/sma/sensor.py
index a2ec7871f608e0..9b6406484df23c 100644
--- a/homeassistant/components/sma/sensor.py
+++ b/homeassistant/components/sma/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import async_track_time_interval
 
-REQUIREMENTS = ['pysma==0.3.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CUSTOM = 'custom'
diff --git a/homeassistant/components/smappee/__init__.py b/homeassistant/components/smappee/__init__.py
index 7a495d7b89a375..c3f739b7b72961 100644
--- a/homeassistant/components/smappee/__init__.py
+++ b/homeassistant/components/smappee/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.discovery import load_platform
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['smappy==0.2.16']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Smappee'
diff --git a/homeassistant/components/smappee/sensor.py b/homeassistant/components/smappee/sensor.py
index 98527c769d9036..e34ede56e133ca 100644
--- a/homeassistant/components/smappee/sensor.py
+++ b/homeassistant/components/smappee/sensor.py
@@ -7,8 +7,6 @@
 
 from . import DATA_SMAPPEE
 
-DEPENDENCIES = ['smappee']
-
 _LOGGER = logging.getLogger(__name__)
 
 SENSOR_PREFIX = 'Smappee'
diff --git a/homeassistant/components/smappee/switch.py b/homeassistant/components/smappee/switch.py
index 963caf457fe8db..25ae9a612ceb8f 100644
--- a/homeassistant/components/smappee/switch.py
+++ b/homeassistant/components/smappee/switch.py
@@ -5,8 +5,6 @@
 
 from . import DATA_SMAPPEE
 
-DEPENDENCIES = ['smappee']
-
 _LOGGER = logging.getLogger(__name__)
 
 ICON = 'mdi:power-plug'
diff --git a/homeassistant/components/smartthings/__init__.py b/homeassistant/components/smartthings/__init__.py
index e5226076f465e9..f2f1021ff66526 100644
--- a/homeassistant/components/smartthings/__init__.py
+++ b/homeassistant/components/smartthings/__init__.py
@@ -28,9 +28,6 @@
     unload_smartapp_endpoint, validate_installed_app,
     validate_webhook_requirements)
 
-REQUIREMENTS = ['pysmartapp==0.3.2', 'pysmartthings==0.6.7']
-DEPENDENCIES = ['webhook']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/smartthings/binary_sensor.py b/homeassistant/components/smartthings/binary_sensor.py
index 45101601d5ffb2..39ff2999e3a2ff 100644
--- a/homeassistant/components/smartthings/binary_sensor.py
+++ b/homeassistant/components/smartthings/binary_sensor.py
@@ -6,8 +6,6 @@
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-DEPENDENCIES = ['smartthings']
-
 CAPABILITY_TO_ATTRIB = {
     'accelerationSensor': 'acceleration',
     'contactSensor': 'contact',
diff --git a/homeassistant/components/smartthings/climate.py b/homeassistant/components/smartthings/climate.py
index bcf2dc02cb03a2..f45ea10ce47522 100644
--- a/homeassistant/components/smartthings/climate.py
+++ b/homeassistant/components/smartthings/climate.py
@@ -17,8 +17,6 @@
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-DEPENDENCIES = ['smartthings']
-
 ATTR_OPERATION_STATE = 'operation_state'
 MODE_TO_STATE = {
     'auto': STATE_AUTO,
diff --git a/homeassistant/components/smartthings/cover.py b/homeassistant/components/smartthings/cover.py
index 53602c3643c2d4..47116ad3dd6312 100644
--- a/homeassistant/components/smartthings/cover.py
+++ b/homeassistant/components/smartthings/cover.py
@@ -11,8 +11,6 @@
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-DEPENDENCIES = ['smartthings']
-
 VALUE_TO_STATE = {
     'closed': STATE_CLOSED,
     'closing': STATE_CLOSING,
diff --git a/homeassistant/components/smartthings/fan.py b/homeassistant/components/smartthings/fan.py
index e722cd21d65a61..befcb3fcb78731 100644
--- a/homeassistant/components/smartthings/fan.py
+++ b/homeassistant/components/smartthings/fan.py
@@ -8,8 +8,6 @@
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-DEPENDENCIES = ['smartthings']
-
 VALUE_TO_SPEED = {
     0: SPEED_OFF,
     1: SPEED_LOW,
diff --git a/homeassistant/components/smartthings/light.py b/homeassistant/components/smartthings/light.py
index 79a5eabc20a3cd..6e609b4b53c5a0 100644
--- a/homeassistant/components/smartthings/light.py
+++ b/homeassistant/components/smartthings/light.py
@@ -11,8 +11,6 @@
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-DEPENDENCIES = ['smartthings']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/smartthings/lock.py b/homeassistant/components/smartthings/lock.py
index c7ab091454cad2..ca2e45114d913d 100644
--- a/homeassistant/components/smartthings/lock.py
+++ b/homeassistant/components/smartthings/lock.py
@@ -6,8 +6,6 @@
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-DEPENDENCIES = ['smartthings']
-
 ST_STATE_LOCKED = 'locked'
 ST_LOCK_ATTR_MAP = {
     'codeId': 'code_id',
diff --git a/homeassistant/components/smartthings/scene.py b/homeassistant/components/smartthings/scene.py
index 9bf3211d8e36e2..17c7bd51b413f8 100644
--- a/homeassistant/components/smartthings/scene.py
+++ b/homeassistant/components/smartthings/scene.py
@@ -3,8 +3,6 @@
 
 from .const import DATA_BROKERS, DOMAIN
 
-DEPENDENCIES = ['smartthings']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/smartthings/sensor.py b/homeassistant/components/smartthings/sensor.py
index 4f7ad1a1398ae4..4abb3e20c3eefb 100644
--- a/homeassistant/components/smartthings/sensor.py
+++ b/homeassistant/components/smartthings/sensor.py
@@ -10,8 +10,6 @@
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-DEPENDENCIES = ['smartthings']
-
 Map = namedtuple("map", "attribute name default_unit device_class")
 
 CAPABILITY_TO_SENSORS = {
diff --git a/homeassistant/components/smartthings/switch.py b/homeassistant/components/smartthings/switch.py
index d30aa3a2303e9e..2149a87250e09a 100644
--- a/homeassistant/components/smartthings/switch.py
+++ b/homeassistant/components/smartthings/switch.py
@@ -6,8 +6,6 @@
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-DEPENDENCIES = ['smartthings']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/smhi/__init__.py b/homeassistant/components/smhi/__init__.py
index 608ee9b6a6d171..b62f110b619912 100644
--- a/homeassistant/components/smhi/__init__.py
+++ b/homeassistant/components/smhi/__init__.py
@@ -6,8 +6,6 @@
 from .config_flow import smhi_locations  # noqa: F401
 from .const import DOMAIN  # noqa: F401
 
-REQUIREMENTS = ['smhi-pkg==1.0.10']
-
 DEFAULT_NAME = 'smhi'
 
 
diff --git a/homeassistant/components/smhi/weather.py b/homeassistant/components/smhi/weather.py
index fc3399f755ccc5..ab5d08e770b475 100644
--- a/homeassistant/components/smhi/weather.py
+++ b/homeassistant/components/smhi/weather.py
@@ -19,8 +19,6 @@
 
 from .const import ATTR_SMHI_CLOUDINESS, ENTITY_ID_SENSOR_FORMAT
 
-DEPENDENCIES = ['smhi']
-
 _LOGGER = logging.getLogger(__name__)
 
 # Used to map condition from API results
diff --git a/homeassistant/components/snapcast/media_player.py b/homeassistant/components/snapcast/media_player.py
index b1589c4db51ab3..12ecabd68eaaec 100644
--- a/homeassistant/components/snapcast/media_player.py
+++ b/homeassistant/components/snapcast/media_player.py
@@ -14,8 +14,6 @@
     STATE_PLAYING, STATE_UNKNOWN)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['snapcast==2.0.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_KEY = 'snapcast'
diff --git a/homeassistant/components/snips/__init__.py b/homeassistant/components/snips/__init__.py
index 0cc96d66b1a1aa..71e37fa5137f11 100644
--- a/homeassistant/components/snips/__init__.py
+++ b/homeassistant/components/snips/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.components import mqtt
 
 DOMAIN = 'snips'
-DEPENDENCIES = ['mqtt']
-
 CONF_INTENTS = 'intents'
 CONF_ACTION = 'action'
 CONF_FEEDBACK = 'feedback_sounds'
diff --git a/homeassistant/components/snmp/device_tracker.py b/homeassistant/components/snmp/device_tracker.py
index 8a0fe7c6101c98..b36681161cb773 100644
--- a/homeassistant/components/snmp/device_tracker.py
+++ b/homeassistant/components/snmp/device_tracker.py
@@ -9,8 +9,6 @@
     DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.const import CONF_HOST
 
-REQUIREMENTS = ['pysnmp==4.4.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_AUTHKEY = 'authkey'
diff --git a/homeassistant/components/snmp/sensor.py b/homeassistant/components/snmp/sensor.py
index 83d311189885ef..df132140c38bce 100644
--- a/homeassistant/components/snmp/sensor.py
+++ b/homeassistant/components/snmp/sensor.py
@@ -11,8 +11,6 @@
     CONF_HOST, CONF_NAME, CONF_PORT, CONF_UNIT_OF_MEASUREMENT, STATE_UNKNOWN,
     CONF_USERNAME, CONF_VALUE_TEMPLATE)
 
-REQUIREMENTS = ['pysnmp==4.4.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_BASEOID = 'baseoid'
diff --git a/homeassistant/components/snmp/switch.py b/homeassistant/components/snmp/switch.py
index fdb3267a3c7c32..5555f511272fd3 100644
--- a/homeassistant/components/snmp/switch.py
+++ b/homeassistant/components/snmp/switch.py
@@ -9,8 +9,6 @@
     CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pysnmp==4.4.8']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_BASEOID = 'baseoid'
diff --git a/homeassistant/components/sochain/sensor.py b/homeassistant/components/sochain/sensor.py
index ef6a53b7091998..3f74e43d140e36 100644
--- a/homeassistant/components/sochain/sensor.py
+++ b/homeassistant/components/sochain/sensor.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['python-sochain-api==0.0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by chain.so"
diff --git a/homeassistant/components/socialblade/sensor.py b/homeassistant/components/socialblade/sensor.py
index 77433ac6d57d4a..a563de83f2d6f9 100644
--- a/homeassistant/components/socialblade/sensor.py
+++ b/homeassistant/components/socialblade/sensor.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['socialbladeclient==0.2']
-
 CHANNEL_ID = 'channel_id'
 
 DEFAULT_NAME = "Social Blade"
diff --git a/homeassistant/components/solaredge/sensor.py b/homeassistant/components/solaredge/sensor.py
index 6c6d7557282e2f..da0eba1320fcad 100644
--- a/homeassistant/components/solaredge/sensor.py
+++ b/homeassistant/components/solaredge/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['solaredge==0.0.2', 'stringcase==1.2.0']
-
 # Config for solaredge monitoring api requests.
 CONF_SITE_ID = "site_id"
 
diff --git a/homeassistant/components/somfy_mylink/__init__.py b/homeassistant/components/somfy_mylink/__init__.py
index c8a6314acaaa50..19d41833510071 100755
--- a/homeassistant/components/somfy_mylink/__init__.py
+++ b/homeassistant/components/somfy_mylink/__init__.py
@@ -8,7 +8,6 @@
 from homeassistant.helpers.discovery import async_load_platform
 
 _LOGGER = logging.getLogger(__name__)
-REQUIREMENTS = ['somfy-mylink-synergy==1.0.4']
 CONF_ENTITY_CONFIG = 'entity_config'
 CONF_SYSTEM_ID = 'system_id'
 CONF_REVERSE = 'reverse'
diff --git a/homeassistant/components/somfy_mylink/cover.py b/homeassistant/components/somfy_mylink/cover.py
index e0b9eae36ebe73..16046d8b4111bf 100755
--- a/homeassistant/components/somfy_mylink/cover.py
+++ b/homeassistant/components/somfy_mylink/cover.py
@@ -7,7 +7,6 @@
 from . import CONF_DEFAULT_REVERSE, DATA_SOMFY_MYLINK
 
 _LOGGER = logging.getLogger(__name__)
-DEPENDENCIES = ['somfy_mylink']
 
 
 async def async_setup_platform(hass,
diff --git a/homeassistant/components/songpal/media_player.py b/homeassistant/components/songpal/media_player.py
index 842360484cfd5b..077975b26e2b6f 100644
--- a/homeassistant/components/songpal/media_player.py
+++ b/homeassistant/components/songpal/media_player.py
@@ -16,8 +16,6 @@
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-songpal==0.0.9.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ENDPOINT = 'endpoint'
diff --git a/homeassistant/components/sonos/__init__.py b/homeassistant/components/sonos/__init__.py
index d5f89cd074ed0d..b661fa26fe7711 100644
--- a/homeassistant/components/sonos/__init__.py
+++ b/homeassistant/components/sonos/__init__.py
@@ -4,7 +4,6 @@
 
 
 DOMAIN = 'sonos'
-REQUIREMENTS = ['pysonos==0.0.10']
 
 
 async def async_setup(hass, config):
diff --git a/homeassistant/components/sony_projector/switch.py b/homeassistant/components/sony_projector/switch.py
index 5b3ffeed75f30b..9ffd8ffb8bf623 100644
--- a/homeassistant/components/sony_projector/switch.py
+++ b/homeassistant/components/sony_projector/switch.py
@@ -8,8 +8,6 @@
     STATE_ON, STATE_OFF, CONF_NAME, CONF_HOST)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pysdcp==1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Sony Projector'
diff --git a/homeassistant/components/soundtouch/media_player.py b/homeassistant/components/soundtouch/media_player.py
index 027fad43a4013b..a2a6c315edae51 100644
--- a/homeassistant/components/soundtouch/media_player.py
+++ b/homeassistant/components/soundtouch/media_player.py
@@ -15,8 +15,6 @@
     STATE_UNAVAILABLE)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['libsoundtouch==0.7.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 SERVICE_PLAY_EVERYWHERE = 'soundtouch_play_everywhere'
diff --git a/homeassistant/components/spaceapi/__init__.py b/homeassistant/components/spaceapi/__init__.py
index fb76718f2d5f06..5431cd6260c1d8 100644
--- a/homeassistant/components/spaceapi/__init__.py
+++ b/homeassistant/components/spaceapi/__init__.py
@@ -45,7 +45,6 @@
 CONF_TWITTER = 'twitter'
 
 DATA_SPACEAPI = 'data_spaceapi'
-DEPENDENCIES = ['http']
 DOMAIN = 'spaceapi'
 
 ISSUE_REPORT_CHANNELS = [CONF_EMAIL, CONF_IRC, CONF_MAILING_LIST, CONF_TWITTER]
diff --git a/homeassistant/components/spc/__init__.py b/homeassistant/components/spc/__init__.py
index 8aafb6f12107bd..8e06e254661ce9 100644
--- a/homeassistant/components/spc/__init__.py
+++ b/homeassistant/components/spc/__init__.py
@@ -7,8 +7,6 @@
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyspcwebgw==0.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_WS_URL = 'ws_url'
diff --git a/homeassistant/components/speedtestdotnet/__init__.py b/homeassistant/components/speedtestdotnet/__init__.py
index 48953874e8c528..838902950186ea 100644
--- a/homeassistant/components/speedtestdotnet/__init__.py
+++ b/homeassistant/components/speedtestdotnet/__init__.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.event import async_track_time_interval
 from .const import DATA_UPDATED, DOMAIN, SENSOR_TYPES
 
-REQUIREMENTS = ['speedtest-cli==2.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_SERVER_ID = 'server_id'
diff --git a/homeassistant/components/speedtestdotnet/sensor.py b/homeassistant/components/speedtestdotnet/sensor.py
index fb92bb76ac848a..785b981f1ac6fb 100644
--- a/homeassistant/components/speedtestdotnet/sensor.py
+++ b/homeassistant/components/speedtestdotnet/sensor.py
@@ -9,8 +9,6 @@
 from .const import (
     DATA_UPDATED, DOMAIN as SPEEDTESTDOTNET_DOMAIN, SENSOR_TYPES)
 
-DEPENDENCIES = ['speedtestdotnet']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_BYTES_RECEIVED = 'bytes_received'
diff --git a/homeassistant/components/spider/__init__.py b/homeassistant/components/spider/__init__.py
index b565f1834577fd..aadbfc8eb9b97b 100644
--- a/homeassistant/components/spider/__init__.py
+++ b/homeassistant/components/spider/__init__.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 
-REQUIREMENTS = ['spiderpy==1.3.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'spider'
diff --git a/homeassistant/components/spider/climate.py b/homeassistant/components/spider/climate.py
index 3b612441a88466..069f34da3f7625 100644
--- a/homeassistant/components/spider/climate.py
+++ b/homeassistant/components/spider/climate.py
@@ -10,8 +10,6 @@
 
 from . import DOMAIN as SPIDER_DOMAIN
 
-DEPENDENCIES = ['spider']
-
 FAN_LIST = [
     'Auto',
     'Low',
diff --git a/homeassistant/components/spider/switch.py b/homeassistant/components/spider/switch.py
index e43762be460f1d..286ea3e7ddf655 100644
--- a/homeassistant/components/spider/switch.py
+++ b/homeassistant/components/spider/switch.py
@@ -5,8 +5,6 @@
 
 from . import DOMAIN as SPIDER_DOMAIN
 
-DEPENDENCIES = ['spider']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/spotcrime/sensor.py b/homeassistant/components/spotcrime/sensor.py
index fa9cfa687ec3af..a5636f543a380a 100644
--- a/homeassistant/components/spotcrime/sensor.py
+++ b/homeassistant/components/spotcrime/sensor.py
@@ -15,8 +15,6 @@
 from homeassistant.util import slugify
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['spotcrime==1.0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DAYS = 'days'
diff --git a/homeassistant/components/spotify/media_player.py b/homeassistant/components/spotify/media_player.py
index b9252d5035bd9f..d6014008c76aaa 100644
--- a/homeassistant/components/spotify/media_player.py
+++ b/homeassistant/components/spotify/media_player.py
@@ -16,8 +16,6 @@
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['spotipy-homeassistant==2.4.4.dev1']
-
 _LOGGER = logging.getLogger(__name__)
 
 AUTH_CALLBACK_NAME = 'api:spotify'
@@ -35,7 +33,6 @@
 
 DEFAULT_CACHE_PATH = '.spotify-token-cache'
 DEFAULT_NAME = 'Spotify'
-DEPENDENCIES = ['http']
 DOMAIN = 'spotify'
 
 ICON = 'mdi:spotify'
diff --git a/homeassistant/components/sql/sensor.py b/homeassistant/components/sql/sensor.py
index bc40d5efb4279f..475bde97de4226 100644
--- a/homeassistant/components/sql/sensor.py
+++ b/homeassistant/components/sql/sensor.py
@@ -15,8 +15,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['sqlalchemy==1.3.0']
-
 CONF_COLUMN_NAME = 'column'
 CONF_QUERIES = 'queries'
 CONF_QUERY = 'query'
diff --git a/homeassistant/components/srp_energy/sensor.py b/homeassistant/components/srp_energy/sensor.py
index 0ebae427da138a..a84295fdef905c 100644
--- a/homeassistant/components/srp_energy/sensor.py
+++ b/homeassistant/components/srp_energy/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['srpenergy==1.0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Powered by SRP Energy"
diff --git a/homeassistant/components/starlingbank/sensor.py b/homeassistant/components/starlingbank/sensor.py
index 00640ea49632ca..743bce5a736a48 100644
--- a/homeassistant/components/starlingbank/sensor.py
+++ b/homeassistant/components/starlingbank/sensor.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['starlingbank==3.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 BALANCE_TYPES = ['cleared_balance', 'effective_balance']
diff --git a/homeassistant/components/startca/sensor.py b/homeassistant/components/startca/sensor.py
index 1e57a4cf859eba..fe2c35c39b7499 100644
--- a/homeassistant/components/startca/sensor.py
+++ b/homeassistant/components/startca/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['xmltodict==0.11.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Start.ca'
diff --git a/homeassistant/components/statsd/__init__.py b/homeassistant/components/statsd/__init__.py
index a8c34d0a8433e1..c1b7e8de68db74 100644
--- a/homeassistant/components/statsd/__init__.py
+++ b/homeassistant/components/statsd/__init__.py
@@ -8,8 +8,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers import state as state_helper
 
-REQUIREMENTS = ['statsd==3.2.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ATTR = 'log_attributes'
diff --git a/homeassistant/components/steam_online/sensor.py b/homeassistant/components/steam_online/sensor.py
index 4b4b73ad8cfd2f..1afeb2be4df2c1 100644
--- a/homeassistant/components/steam_online/sensor.py
+++ b/homeassistant/components/steam_online/sensor.py
@@ -8,8 +8,6 @@
 from homeassistant.const import CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['steamodd==4.21']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ACCOUNTS = 'accounts'
diff --git a/homeassistant/components/stream/__init__.py b/homeassistant/components/stream/__init__.py
index 43debc504e1a15..1de1fc35ea14e4 100644
--- a/homeassistant/components/stream/__init__.py
+++ b/homeassistant/components/stream/__init__.py
@@ -19,12 +19,8 @@
 from .hls import async_setup_hls
 from .recorder import async_setup_recorder
 
-REQUIREMENTS = ['av==6.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['http']
-
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({}),
 }, extra=vol.ALLOW_EXTRA)
diff --git a/homeassistant/components/stride/notify.py b/homeassistant/components/stride/notify.py
index fa08697d798579..1ce2cf5e221ff2 100644
--- a/homeassistant/components/stride/notify.py
+++ b/homeassistant/components/stride/notify.py
@@ -10,8 +10,6 @@
                                              PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-REQUIREMENTS = ['pystride==0.1.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PANEL = 'panel'
diff --git a/homeassistant/components/swiss_hydrological_data/sensor.py b/homeassistant/components/swiss_hydrological_data/sensor.py
index 84964a94cbd141..c8a2c62c5bfddb 100644
--- a/homeassistant/components/swiss_hydrological_data/sensor.py
+++ b/homeassistant/components/swiss_hydrological_data/sensor.py
@@ -10,8 +10,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['swisshydrodata==0.0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by the Swiss Federal Office for the " \
diff --git a/homeassistant/components/swiss_public_transport/sensor.py b/homeassistant/components/swiss_public_transport/sensor.py
index 8d6b7fdee0ea85..9ff5ea71819c21 100644
--- a/homeassistant/components/swiss_public_transport/sensor.py
+++ b/homeassistant/components/swiss_public_transport/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['python_opendata_transport==0.1.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DEPARTURE_TIME1 = 'next_departure'
diff --git a/homeassistant/components/switch/__init__.py b/homeassistant/components/switch/__init__.py
index 7e89a5369c8453..65b2bb7b92a4a7 100644
--- a/homeassistant/components/switch/__init__.py
+++ b/homeassistant/components/switch/__init__.py
@@ -16,7 +16,6 @@
 from homeassistant.components import group
 
 DOMAIN = 'switch'
-DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=30)
 
 GROUP_NAME_ALL_SWITCHES = 'all switches'
diff --git a/homeassistant/components/switchbot/switch.py b/homeassistant/components/switchbot/switch.py
index 3db9b5fd2262bf..b8a2a905dcb00c 100644
--- a/homeassistant/components/switchbot/switch.py
+++ b/homeassistant/components/switchbot/switch.py
@@ -8,8 +8,6 @@
 from homeassistant.const import CONF_NAME, CONF_MAC
 from homeassistant.helpers.restore_state import RestoreEntity
 
-REQUIREMENTS = ['PySwitchbot==0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Switchbot'
diff --git a/homeassistant/components/switchmate/switch.py b/homeassistant/components/switchmate/switch.py
index c14a6ca80879bd..ed76089147fda5 100644
--- a/homeassistant/components/switchmate/switch.py
+++ b/homeassistant/components/switchmate/switch.py
@@ -8,8 +8,6 @@
 from homeassistant.components.switch import SwitchDevice, PLATFORM_SCHEMA
 from homeassistant.const import CONF_NAME, CONF_MAC
 
-REQUIREMENTS = ['pySwitchmate==0.4.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_FLIP_ON_OFF = 'flip_on_off'
diff --git a/homeassistant/components/syncthru/sensor.py b/homeassistant/components/syncthru/sensor.py
index 5596d4ab86adf9..33f57fa0371eaa 100644
--- a/homeassistant/components/syncthru/sensor.py
+++ b/homeassistant/components/syncthru/sensor.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 
-REQUIREMENTS = ['pysyncthru==0.3.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Samsung Printer'
diff --git a/homeassistant/components/synology/camera.py b/homeassistant/components/synology/camera.py
index c452f60cc2a1d2..936474652800d4 100644
--- a/homeassistant/components/synology/camera.py
+++ b/homeassistant/components/synology/camera.py
@@ -14,8 +14,6 @@
     async_get_clientsession)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['py-synology==0.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Synology Camera'
diff --git a/homeassistant/components/synology_srm/device_tracker.py b/homeassistant/components/synology_srm/device_tracker.py
index bf5653d681bbb8..57dbb7134e207c 100644
--- a/homeassistant/components/synology_srm/device_tracker.py
+++ b/homeassistant/components/synology_srm/device_tracker.py
@@ -13,8 +13,6 @@
     CONF_HOST, CONF_USERNAME, CONF_PASSWORD,
     CONF_PORT, CONF_SSL, CONF_VERIFY_SSL)
 
-REQUIREMENTS = ['synology-srm==0.0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_USERNAME = 'admin'
diff --git a/homeassistant/components/synologydsm/sensor.py b/homeassistant/components/synologydsm/sensor.py
index 0d5a253483f9ac..2d12dbfe763662 100644
--- a/homeassistant/components/synologydsm/sensor.py
+++ b/homeassistant/components/synologydsm/sensor.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['python-synology==0.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = 'Data provided by Synology'
diff --git a/homeassistant/components/system_health/__init__.py b/homeassistant/components/system_health/__init__.py
index 9a171296ce9578..7dbb682b287b84 100644
--- a/homeassistant/components/system_health/__init__.py
+++ b/homeassistant/components/system_health/__init__.py
@@ -14,7 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['http']
 DOMAIN = 'system_health'
 
 INFO_CALLBACK_TIMEOUT = 5
diff --git a/homeassistant/components/system_log/__init__.py b/homeassistant/components/system_log/__init__.py
index d6877c32f0deee..c5909309ab390e 100644
--- a/homeassistant/components/system_log/__init__.py
+++ b/homeassistant/components/system_log/__init__.py
@@ -20,7 +20,6 @@
 DATA_SYSTEM_LOG = 'system_log'
 DEFAULT_MAX_ENTRIES = 50
 DEFAULT_FIRE_EVENT = False
-DEPENDENCIES = ['http']
 DOMAIN = 'system_log'
 
 EVENT_SYSTEM_LOG = 'system_log_event'
diff --git a/homeassistant/components/systemmonitor/sensor.py b/homeassistant/components/systemmonitor/sensor.py
index cf65daa439509c..fbd4ed52de7465 100644
--- a/homeassistant/components/systemmonitor/sensor.py
+++ b/homeassistant/components/systemmonitor/sensor.py
@@ -12,8 +12,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['psutil==5.6.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ARG = 'arg'
diff --git a/homeassistant/components/sytadin/sensor.py b/homeassistant/components/sytadin/sensor.py
index 517deda7ca2b71..887d0800e332b3 100644
--- a/homeassistant/components/sytadin/sensor.py
+++ b/homeassistant/components/sytadin/sensor.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['beautifulsoup4==4.7.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 URL = 'http://www.sytadin.fr/sys/barometres_de_la_circulation.jsp.html'
diff --git a/homeassistant/components/tado/__init__.py b/homeassistant/components/tado/__init__.py
index 8d3f541972e50c..9bbca925868c89 100644
--- a/homeassistant/components/tado/__init__.py
+++ b/homeassistant/components/tado/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.const import CONF_USERNAME, CONF_PASSWORD
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['python-tado==0.2.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_TADO = 'tado_data'
diff --git a/homeassistant/components/tahoma/__init__.py b/homeassistant/components/tahoma/__init__.py
index 1807667da87dc6..9605b9e14e4e25 100644
--- a/homeassistant/components/tahoma/__init__.py
+++ b/homeassistant/components/tahoma/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['tahoma-api==0.0.14']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'tahoma'
diff --git a/homeassistant/components/tahoma/binary_sensor.py b/homeassistant/components/tahoma/binary_sensor.py
index 948c6f90a58895..f4305077a07391 100644
--- a/homeassistant/components/tahoma/binary_sensor.py
+++ b/homeassistant/components/tahoma/binary_sensor.py
@@ -7,8 +7,6 @@
 
 from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
-DEPENDENCIES = ['tahoma']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=120)
diff --git a/homeassistant/components/tahoma/cover.py b/homeassistant/components/tahoma/cover.py
index 85e785f9ca3b44..eeacf7c83b216c 100644
--- a/homeassistant/components/tahoma/cover.py
+++ b/homeassistant/components/tahoma/cover.py
@@ -7,8 +7,6 @@
 
 from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
-DEPENDENCIES = ['tahoma']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_MEM_POS = 'memorized_position'
diff --git a/homeassistant/components/tahoma/scene.py b/homeassistant/components/tahoma/scene.py
index eedb95d1a772c9..cea8217b17a305 100644
--- a/homeassistant/components/tahoma/scene.py
+++ b/homeassistant/components/tahoma/scene.py
@@ -5,8 +5,6 @@
 
 from . import DOMAIN as TAHOMA_DOMAIN
 
-DEPENDENCIES = ['tahoma']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/tahoma/sensor.py b/homeassistant/components/tahoma/sensor.py
index 3c03911804ace1..288462dcc802e6 100644
--- a/homeassistant/components/tahoma/sensor.py
+++ b/homeassistant/components/tahoma/sensor.py
@@ -7,8 +7,6 @@
 
 from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
-DEPENDENCIES = ['tahoma']
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(seconds=60)
diff --git a/homeassistant/components/tahoma/switch.py b/homeassistant/components/tahoma/switch.py
index 71f00ed8937c7d..4877ae61e28ff8 100644
--- a/homeassistant/components/tahoma/switch.py
+++ b/homeassistant/components/tahoma/switch.py
@@ -6,8 +6,6 @@
 
 from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
-DEPENDENCIES = ['tahoma']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_RSSI_LEVEL = 'rssi_level'
diff --git a/homeassistant/components/tank_utility/sensor.py b/homeassistant/components/tank_utility/sensor.py
index 5389d60ef461db..8d83b0773cee05 100644
--- a/homeassistant/components/tank_utility/sensor.py
+++ b/homeassistant/components/tank_utility/sensor.py
@@ -12,10 +12,6 @@
 from homeassistant.helpers.entity import Entity
 
 
-REQUIREMENTS = [
-    "tank_utility==1.4.0"
-]
-
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = datetime.timedelta(hours=1)
diff --git a/homeassistant/components/tapsaff/binary_sensor.py b/homeassistant/components/tapsaff/binary_sensor.py
index 639e9574ed971e..b2875c8e40d26f 100644
--- a/homeassistant/components/tapsaff/binary_sensor.py
+++ b/homeassistant/components/tapsaff/binary_sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.const import CONF_NAME
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['tapsaff==0.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_LOCATION = 'location'
diff --git a/homeassistant/components/tautulli/sensor.py b/homeassistant/components/tautulli/sensor.py
index 44be10749bfa36..ca1651eca68af1 100644
--- a/homeassistant/components/tautulli/sensor.py
+++ b/homeassistant/components/tautulli/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pytautulli==0.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_MONITORED_USERS = 'monitored_users'
diff --git a/homeassistant/components/ted5000/sensor.py b/homeassistant/components/ted5000/sensor.py
index fba9866302d984..32869949eb9a0f 100644
--- a/homeassistant/components/ted5000/sensor.py
+++ b/homeassistant/components/ted5000/sensor.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['xmltodict==0.11.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'ted'
diff --git a/homeassistant/components/telegram/notify.py b/homeassistant/components/telegram/notify.py
index 3602bbd24419f7..b18e0e2c1d1727 100644
--- a/homeassistant/components/telegram/notify.py
+++ b/homeassistant/components/telegram/notify.py
@@ -12,8 +12,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'telegram_bot'
-DEPENDENCIES = [DOMAIN]
-
 ATTR_KEYBOARD = 'keyboard'
 ATTR_INLINE_KEYBOARD = 'inline_keyboard'
 ATTR_PHOTO = 'photo'
diff --git a/homeassistant/components/telegram_bot/__init__.py b/homeassistant/components/telegram_bot/__init__.py
index 7d19e8212b6aca..a77b86038536e6 100644
--- a/homeassistant/components/telegram_bot/__init__.py
+++ b/homeassistant/components/telegram_bot/__init__.py
@@ -16,8 +16,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.exceptions import TemplateError
 
-REQUIREMENTS = ['python-telegram-bot==11.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ARGS = 'args'
diff --git a/homeassistant/components/telegram_bot/webhooks.py b/homeassistant/components/telegram_bot/webhooks.py
index 424ece81549e2f..1a2839b176e04e 100644
--- a/homeassistant/components/telegram_bot/webhooks.py
+++ b/homeassistant/components/telegram_bot/webhooks.py
@@ -15,8 +15,6 @@
     CONF_ALLOWED_CHAT_IDS, PLATFORM_SCHEMA, BaseTelegramBotEntity,
     initialize_bot)
 
-DEPENDENCIES = ['http']
-
 _LOGGER = logging.getLogger(__name__)
 
 TELEGRAM_HANDLER_URL = '/api/telegram_webhooks'
diff --git a/homeassistant/components/tellduslive/__init__.py b/homeassistant/components/tellduslive/__init__.py
index 64f4a0102a1572..de665bc314fd7b 100644
--- a/homeassistant/components/tellduslive/__init__.py
+++ b/homeassistant/components/tellduslive/__init__.py
@@ -19,8 +19,6 @@
 
 APPLICATION_NAME = 'Home Assistant'
 
-REQUIREMENTS = ['tellduslive==0.10.10']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/tellstick/__init__.py b/homeassistant/components/tellstick/__init__.py
index c35d2f790273a2..815e194184bc14 100644
--- a/homeassistant/components/tellstick/__init__.py
+++ b/homeassistant/components/tellstick/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['tellcore-py==1.1.2', 'tellcore-net==0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DISCOVER_CONFIG = 'config'
diff --git a/homeassistant/components/tellstick/sensor.py b/homeassistant/components/tellstick/sensor.py
index 0438ad79abca19..39946dac7c141c 100644
--- a/homeassistant/components/tellstick/sensor.py
+++ b/homeassistant/components/tellstick/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-DEPENDENCIES = ['tellstick']
-
 _LOGGER = logging.getLogger(__name__)
 
 DatatypeDescription = namedtuple('DatatypeDescription', ['name', 'unit'])
diff --git a/homeassistant/components/temper/sensor.py b/homeassistant/components/temper/sensor.py
index 1c6cb9fdff4636..9bf6a3296fcedb 100644
--- a/homeassistant/components/temper/sensor.py
+++ b/homeassistant/components/temper/sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['temperusb==1.5.3']
-
 CONF_SCALE = 'scale'
 CONF_OFFSET = 'offset'
 
diff --git a/homeassistant/components/tensorflow/image_processing.py b/homeassistant/components/tensorflow/image_processing.py
index 4e4a80a525e42e..2125ea80364fcf 100644
--- a/homeassistant/components/tensorflow/image_processing.py
+++ b/homeassistant/components/tensorflow/image_processing.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers import template
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['numpy==1.16.2', 'pillow==5.4.1', 'protobuf==3.6.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_MATCHES = 'matches'
diff --git a/homeassistant/components/tesla/__init__.py b/homeassistant/components/tesla/__init__.py
index 244538f5f462ef..894502aa50aa06 100644
--- a/homeassistant/components/tesla/__init__.py
+++ b/homeassistant/components/tesla/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import slugify
 
-REQUIREMENTS = ['teslajsonpy==0.0.25']
-
 DOMAIN = 'tesla'
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/tesla/binary_sensor.py b/homeassistant/components/tesla/binary_sensor.py
index a87239d24308d9..147853f5855a51 100644
--- a/homeassistant/components/tesla/binary_sensor.py
+++ b/homeassistant/components/tesla/binary_sensor.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['tesla']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Tesla binary sensor."""
diff --git a/homeassistant/components/tesla/climate.py b/homeassistant/components/tesla/climate.py
index 603ce1a4d61785..cb2eee4367f39e 100644
--- a/homeassistant/components/tesla/climate.py
+++ b/homeassistant/components/tesla/climate.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['tesla']
-
 OPERATION_LIST = [STATE_ON, STATE_OFF]
 
 SUPPORT_FLAGS = SUPPORT_TARGET_TEMPERATURE | SUPPORT_OPERATION_MODE
diff --git a/homeassistant/components/tesla/device_tracker.py b/homeassistant/components/tesla/device_tracker.py
index 5a7693d8370665..c3fd649ad4e1a7 100644
--- a/homeassistant/components/tesla/device_tracker.py
+++ b/homeassistant/components/tesla/device_tracker.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['tesla']
-
 
 def setup_scanner(hass, config, see, discovery_info=None):
     """Set up the Tesla tracker."""
diff --git a/homeassistant/components/tesla/lock.py b/homeassistant/components/tesla/lock.py
index ade394496d6edb..4601aebf7c7548 100644
--- a/homeassistant/components/tesla/lock.py
+++ b/homeassistant/components/tesla/lock.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['tesla']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Tesla lock platform."""
diff --git a/homeassistant/components/tesla/sensor.py b/homeassistant/components/tesla/sensor.py
index 99705d3f79336e..1a1fe85e25221e 100644
--- a/homeassistant/components/tesla/sensor.py
+++ b/homeassistant/components/tesla/sensor.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['tesla']
-
 SCAN_INTERVAL = timedelta(minutes=5)
 
 
diff --git a/homeassistant/components/tesla/switch.py b/homeassistant/components/tesla/switch.py
index e00164ff1a7d52..9b15ca092b41ad 100644
--- a/homeassistant/components/tesla/switch.py
+++ b/homeassistant/components/tesla/switch.py
@@ -7,7 +7,6 @@
 from . import DOMAIN as TESLA_DOMAIN, TeslaDevice
 
 _LOGGER = logging.getLogger(__name__)
-DEPENDENCIES = ['tesla']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/tfiac/climate.py b/homeassistant/components/tfiac/climate.py
index 44fa19098236c8..c3c42b3b63bee7 100644
--- a/homeassistant/components/tfiac/climate.py
+++ b/homeassistant/components/tfiac/climate.py
@@ -13,8 +13,6 @@
 from homeassistant.const import ATTR_TEMPERATURE, CONF_HOST, TEMP_FAHRENHEIT
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pytfiac==0.3']
-
 SCAN_INTERVAL = timedelta(seconds=60)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/thermoworks_smoke/sensor.py b/homeassistant/components/thermoworks_smoke/sensor.py
index 0c6cddd9fcd734..55a4cd67cdd5ad 100644
--- a/homeassistant/components/thermoworks_smoke/sensor.py
+++ b/homeassistant/components/thermoworks_smoke/sensor.py
@@ -17,8 +17,6 @@
     CONF_MONITORED_CONDITIONS, CONF_EXCLUDE, ATTR_BATTERY_LEVEL
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['thermoworks_smoke==0.1.8', 'stringcase==1.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 PROBE_1 = 'probe1'
diff --git a/homeassistant/components/thethingsnetwork/sensor.py b/homeassistant/components/thethingsnetwork/sensor.py
index d59b429721b562..08cdecf8569522 100644
--- a/homeassistant/components/thethingsnetwork/sensor.py
+++ b/homeassistant/components/thethingsnetwork/sensor.py
@@ -22,8 +22,6 @@
 ATTR_TIME = 'time'
 
 DEFAULT_TIMEOUT = 10
-DEPENDENCIES = ['thethingsnetwork']
-
 CONF_DEVICE_ID = 'device_id'
 CONF_VALUES = 'values'
 
diff --git a/homeassistant/components/thingspeak/__init__.py b/homeassistant/components/thingspeak/__init__.py
index 0fa15e7efb4bf4..d6191dbd3005df 100644
--- a/homeassistant/components/thingspeak/__init__.py
+++ b/homeassistant/components/thingspeak/__init__.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers import event, state as state_helper
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['thingspeak==0.4.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'thingspeak'
diff --git a/homeassistant/components/thinkingcleaner/sensor.py b/homeassistant/components/thinkingcleaner/sensor.py
index f8462435a451b6..4f05f142568450 100644
--- a/homeassistant/components/thinkingcleaner/sensor.py
+++ b/homeassistant/components/thinkingcleaner/sensor.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pythinkingcleaner==0.0.3']
-
 MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
 MIN_TIME_BETWEEN_FORCED_SCANS = timedelta(milliseconds=100)
 
diff --git a/homeassistant/components/thinkingcleaner/switch.py b/homeassistant/components/thinkingcleaner/switch.py
index 38a96eb029865e..43b5a8ca422a06 100644
--- a/homeassistant/components/thinkingcleaner/switch.py
+++ b/homeassistant/components/thinkingcleaner/switch.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pythinkingcleaner==0.0.3']
-
 MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
 MIN_TIME_BETWEEN_FORCED_SCANS = timedelta(milliseconds=100)
 
diff --git a/homeassistant/components/tibber/__init__.py b/homeassistant/components/tibber/__init__.py
index 19cf6fe65258ea..15c684b72da4c6 100644
--- a/homeassistant/components/tibber/__init__.py
+++ b/homeassistant/components/tibber/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers import discovery
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-REQUIREMENTS = ['pyTibber==0.10.1']
-
 DOMAIN = 'tibber'
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/tikteck/light.py b/homeassistant/components/tikteck/light.py
index 4f5596c71be4d7..d69672cb5feaf5 100644
--- a/homeassistant/components/tikteck/light.py
+++ b/homeassistant/components/tikteck/light.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-REQUIREMENTS = ['tikteck==0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_TIKTECK_LED = (SUPPORT_BRIGHTNESS | SUPPORT_COLOR)
diff --git a/homeassistant/components/tile/device_tracker.py b/homeassistant/components/tile/device_tracker.py
index c471c1e23b4d49..f83e4bccea4d3b 100644
--- a/homeassistant/components/tile/device_tracker.py
+++ b/homeassistant/components/tile/device_tracker.py
@@ -13,8 +13,6 @@
 from homeassistant.util.json import load_json, save_json
 
 _LOGGER = logging.getLogger(__name__)
-REQUIREMENTS = ['pytile==2.0.6']
-
 CLIENT_UUID_CONFIG_FILE = '.tile.conf'
 DEVICE_TYPES = ['PHONE', 'TILE']
 
diff --git a/homeassistant/components/todoist/calendar.py b/homeassistant/components/todoist/calendar.py
index 313935e1221fe8..2ee88080924f2a 100644
--- a/homeassistant/components/todoist/calendar.py
+++ b/homeassistant/components/todoist/calendar.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.template import DATE_STR_FORMAT
 from homeassistant.util import Throttle, dt
 
-REQUIREMENTS = ['todoist-python==7.0.17']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_EXTRA_PROJECTS = 'custom_projects'
diff --git a/homeassistant/components/tof/sensor.py b/homeassistant/components/tof/sensor.py
index a403db036825c8..66b86da301c1d6 100644
--- a/homeassistant/components/tof/sensor.py
+++ b/homeassistant/components/tof/sensor.py
@@ -12,10 +12,6 @@
 from homeassistant.const import CONF_NAME
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['VL53L1X2==0.1.5']
-
-DEPENDENCIES = ['rpi_gpio']
-
 _LOGGER = logging.getLogger(__name__)
 
 LENGTH_MILLIMETERS = 'mm'
diff --git a/homeassistant/components/toon/__init__.py b/homeassistant/components/toon/__init__.py
index d718b5895e4520..da47285934cca9 100644
--- a/homeassistant/components/toon/__init__.py
+++ b/homeassistant/components/toon/__init__.py
@@ -16,8 +16,6 @@
     CONF_CLIENT_ID, CONF_CLIENT_SECRET, CONF_DISPLAY, CONF_TENANT,
     DATA_TOON_CLIENT, DATA_TOON_CONFIG, DOMAIN)
 
-REQUIREMENTS = ['toonapilib==3.2.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 # Validation of the user's configuration
diff --git a/homeassistant/components/toon/binary_sensor.py b/homeassistant/components/toon/binary_sensor.py
index 694b7d1d03383b..c9bec0f3e6aee7 100644
--- a/homeassistant/components/toon/binary_sensor.py
+++ b/homeassistant/components/toon/binary_sensor.py
@@ -12,8 +12,6 @@
                ToonBoilerModuleDeviceEntity)
 from .const import DATA_TOON_CLIENT, DOMAIN
 
-DEPENDENCIES = ['toon']
-
 _LOGGER = logging.getLogger(__name__)
 
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=5)
diff --git a/homeassistant/components/toon/climate.py b/homeassistant/components/toon/climate.py
index f09dc010c792ad..d17cc641db091e 100644
--- a/homeassistant/components/toon/climate.py
+++ b/homeassistant/components/toon/climate.py
@@ -15,8 +15,6 @@
 from . import ToonDisplayDeviceEntity
 from .const import DATA_TOON_CLIENT, DEFAULT_MAX_TEMP, DEFAULT_MIN_TEMP, DOMAIN
 
-DEPENDENCIES = ['toon']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_FLAGS = SUPPORT_TARGET_TEMPERATURE | SUPPORT_OPERATION_MODE
diff --git a/homeassistant/components/toon/sensor.py b/homeassistant/components/toon/sensor.py
index f58c8ef4840d66..7762aa0d822587 100644
--- a/homeassistant/components/toon/sensor.py
+++ b/homeassistant/components/toon/sensor.py
@@ -11,8 +11,6 @@
 from .const import (CURRENCY_EUR, DATA_TOON_CLIENT, DOMAIN, POWER_KWH,
                     POWER_WATT, VOLUME_CM3, VOLUME_M3, RATIO_PERCENT)
 
-DEPENDENCIES = ['toon']
-
 _LOGGER = logging.getLogger(__name__)
 
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=5)
diff --git a/homeassistant/components/torque/sensor.py b/homeassistant/components/torque/sensor.py
index 2f947c178b89ca..01efd49e862864 100644
--- a/homeassistant/components/torque/sensor.py
+++ b/homeassistant/components/torque/sensor.py
@@ -16,7 +16,6 @@
 API_PATH = '/api/torque'
 
 DEFAULT_NAME = 'vehicle'
-DEPENDENCIES = ['http']
 DOMAIN = 'torque'
 
 ENTITY_NAME_FORMAT = '{0} {1}'
diff --git a/homeassistant/components/totalconnect/alarm_control_panel.py b/homeassistant/components/totalconnect/alarm_control_panel.py
index c56c4ed95a63fe..848202d6ce1445 100644
--- a/homeassistant/components/totalconnect/alarm_control_panel.py
+++ b/homeassistant/components/totalconnect/alarm_control_panel.py
@@ -13,8 +13,6 @@
     STATE_ALARM_ARMED_CUSTOM_BYPASS)
 
 
-REQUIREMENTS = ['total_connect_client==0.25']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Total Connect'
diff --git a/homeassistant/components/touchline/climate.py b/homeassistant/components/touchline/climate.py
index e003ea257d75a9..e4e4a5b7fb8b41 100644
--- a/homeassistant/components/touchline/climate.py
+++ b/homeassistant/components/touchline/climate.py
@@ -9,8 +9,6 @@
 from homeassistant.const import CONF_HOST, TEMP_CELSIUS, ATTR_TEMPERATURE
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pytouchline==0.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_FLAGS = (SUPPORT_TARGET_TEMPERATURE)
diff --git a/homeassistant/components/tplink/__init__.py b/homeassistant/components/tplink/__init__.py
index 9fc12db0d63591..2ebf342c38d510 100644
--- a/homeassistant/components/tplink/__init__.py
+++ b/homeassistant/components/tplink/__init__.py
@@ -33,8 +33,6 @@
     }),
 }, extra=vol.ALLOW_EXTRA)
 
-REQUIREMENTS = ['pyHS100==0.3.4']
-
 
 async def _async_has_devices(hass):
     """Return if there are devices that can be discovered."""
diff --git a/homeassistant/components/tplink/device_tracker.py b/homeassistant/components/tplink/device_tracker.py
index 7f5c4a37d2451c..7b665006a44cf7 100644
--- a/homeassistant/components/tplink/device_tracker.py
+++ b/homeassistant/components/tplink/device_tracker.py
@@ -17,8 +17,6 @@
     CONF_HOST, CONF_PASSWORD, CONF_USERNAME, HTTP_HEADER_X_REQUESTED_WITH)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['tplink==0.2.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 HTTP_HEADER_NO_CACHE = 'no-cache'
diff --git a/homeassistant/components/tplink/light.py b/homeassistant/components/tplink/light.py
index 9f13766c4eff9d..6fa795bcafcad5 100644
--- a/homeassistant/components/tplink/light.py
+++ b/homeassistant/components/tplink/light.py
@@ -12,8 +12,6 @@
 
 from . import CONF_LIGHT, DOMAIN as TPLINK_DOMAIN
 
-DEPENDENCIES = ['tplink']
-
 PARALLEL_UPDATES = 0
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/tplink/switch.py b/homeassistant/components/tplink/switch.py
index a4eeadd1c60a7e..3040b52cd2245b 100644
--- a/homeassistant/components/tplink/switch.py
+++ b/homeassistant/components/tplink/switch.py
@@ -9,8 +9,6 @@
 
 from . import CONF_SWITCH, DOMAIN as TPLINK_DOMAIN
 
-DEPENDENCIES = ['tplink']
-
 PARALLEL_UPDATES = 0
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/tplink_lte/__init__.py b/homeassistant/components/tplink_lte/__init__.py
index ae0b73d1c7c2bf..d3d2933238d8d3 100644
--- a/homeassistant/components/tplink_lte/__init__.py
+++ b/homeassistant/components/tplink_lte/__init__.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers import config_validation as cv, discovery
 from homeassistant.helpers.aiohttp_client import async_create_clientsession
 
-REQUIREMENTS = ['tp-connected==0.0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'tplink_lte'
diff --git a/homeassistant/components/tplink_lte/notify.py b/homeassistant/components/tplink_lte/notify.py
index 519641ed34bf29..a8844979e5e172 100644
--- a/homeassistant/components/tplink_lte/notify.py
+++ b/homeassistant/components/tplink_lte/notify.py
@@ -9,8 +9,6 @@
 
 from ..tplink_lte import DATA_KEY
 
-DEPENDENCIES = ['tplink_lte']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/traccar/device_tracker.py b/homeassistant/components/traccar/device_tracker.py
index 28d13dd4fe6fcc..1600227bfe2acc 100644
--- a/homeassistant/components/traccar/device_tracker.py
+++ b/homeassistant/components/traccar/device_tracker.py
@@ -16,8 +16,6 @@
 from homeassistant.util import slugify
 
 
-REQUIREMENTS = ['pytraccar==0.5.0', 'stringcase==1.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ADDRESS = 'address'
diff --git a/homeassistant/components/trackr/device_tracker.py b/homeassistant/components/trackr/device_tracker.py
index 1322fde7e1ae33..55f8b7c1fafcfd 100644
--- a/homeassistant/components/trackr/device_tracker.py
+++ b/homeassistant/components/trackr/device_tracker.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pytrackr==0.0.5']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_USERNAME): cv.string,
     vol.Required(CONF_PASSWORD): cv.string
diff --git a/homeassistant/components/tradfri/__init__.py b/homeassistant/components/tradfri/__init__.py
index b14bc811754350..ec339bc6312f62 100644
--- a/homeassistant/components/tradfri/__init__.py
+++ b/homeassistant/components/tradfri/__init__.py
@@ -13,8 +13,6 @@
 
 from . import config_flow  # noqa  pylint_disable=unused-import
 
-REQUIREMENTS = ['pytradfri[async]==6.0.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/tradfri/light.py b/homeassistant/components/tradfri/light.py
index 07ab4806dfcc10..a2b2cdc7c49bd7 100644
--- a/homeassistant/components/tradfri/light.py
+++ b/homeassistant/components/tradfri/light.py
@@ -17,7 +17,6 @@
 ATTR_HUE = 'hue'
 ATTR_SAT = 'saturation'
 ATTR_TRANSITION_TIME = 'transition_time'
-DEPENDENCIES = ['tradfri']
 PLATFORM_SCHEMA = LIGHT_PLATFORM_SCHEMA
 IKEA = 'IKEA of Sweden'
 TRADFRI_LIGHT_MANAGER = 'Tradfri Light Manager'
diff --git a/homeassistant/components/tradfri/sensor.py b/homeassistant/components/tradfri/sensor.py
index acc84a935904d3..b6f4aef370d57d 100644
--- a/homeassistant/components/tradfri/sensor.py
+++ b/homeassistant/components/tradfri/sensor.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['tradfri']
-
 SCAN_INTERVAL = timedelta(minutes=5)
 
 
diff --git a/homeassistant/components/tradfri/switch.py b/homeassistant/components/tradfri/switch.py
index ef9a9537cffe18..b7826624f525c0 100644
--- a/homeassistant/components/tradfri/switch.py
+++ b/homeassistant/components/tradfri/switch.py
@@ -9,7 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['tradfri']
 IKEA = 'IKEA of Sweden'
 TRADFRI_SWITCH_MANAGER = 'Tradfri Switch Manager'
 
diff --git a/homeassistant/components/trafikverket_weatherstation/sensor.py b/homeassistant/components/trafikverket_weatherstation/sensor.py
index bf8f4c803e0392..c846d020c84877 100644
--- a/homeassistant/components/trafikverket_weatherstation/sensor.py
+++ b/homeassistant/components/trafikverket_weatherstation/sensor.py
@@ -16,8 +16,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pytrafikverket==0.1.5.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Data provided by Trafikverket"
diff --git a/homeassistant/components/transmission/__init__.py b/homeassistant/components/transmission/__init__.py
index 25e21dc3d8a090..5a2fbbff5cb8ca 100644
--- a/homeassistant/components/transmission/__init__.py
+++ b/homeassistant/components/transmission/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['transmissionrpc==0.11']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'transmission'
diff --git a/homeassistant/components/transmission/sensor.py b/homeassistant/components/transmission/sensor.py
index dfd4c1950977b0..ac3bb3b2626722 100644
--- a/homeassistant/components/transmission/sensor.py
+++ b/homeassistant/components/transmission/sensor.py
@@ -9,8 +9,6 @@
 
 from . import DATA_TRANSMISSION, DATA_UPDATED, SENSOR_TYPES
 
-DEPENDENCIES = ['transmission']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Transmission'
diff --git a/homeassistant/components/transmission/switch.py b/homeassistant/components/transmission/switch.py
index 854a2e727b0b83..bd965e172b1e6d 100644
--- a/homeassistant/components/transmission/switch.py
+++ b/homeassistant/components/transmission/switch.py
@@ -8,8 +8,6 @@
 
 from . import DATA_TRANSMISSION, DATA_UPDATED
 
-DEPENDENCIES = ['transmission']
-
 _LOGGING = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Transmission Turtle Mode'
diff --git a/homeassistant/components/transport_nsw/sensor.py b/homeassistant/components/transport_nsw/sensor.py
index 3c40bf4f709e77..9549814e00213d 100644
--- a/homeassistant/components/transport_nsw/sensor.py
+++ b/homeassistant/components/transport_nsw/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (CONF_NAME, CONF_API_KEY, ATTR_ATTRIBUTION)
 
-REQUIREMENTS = ['PyTransportNSW==0.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_STOP_ID = 'stop_id'
diff --git a/homeassistant/components/travisci/sensor.py b/homeassistant/components/travisci/sensor.py
index 99309f7e2b7533..7d94e9e910e22a 100644
--- a/homeassistant/components/travisci/sensor.py
+++ b/homeassistant/components/travisci/sensor.py
@@ -11,8 +11,6 @@
     CONF_MONITORED_CONDITIONS)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['TravisPy==0.3.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Information provided by https://travis-ci.org/"
diff --git a/homeassistant/components/trend/binary_sensor.py b/homeassistant/components/trend/binary_sensor.py
index 163703373d3303..a7fb18bf5b7cdb 100644
--- a/homeassistant/components/trend/binary_sensor.py
+++ b/homeassistant/components/trend/binary_sensor.py
@@ -17,8 +17,6 @@
 from homeassistant.helpers.event import async_track_state_change
 from homeassistant.util import utcnow
 
-REQUIREMENTS = ['numpy==1.16.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ATTRIBUTE = 'attribute'
diff --git a/homeassistant/components/tts/__init__.py b/homeassistant/components/tts/__init__.py
index 763baa262bed81..ccb7989a6cfdc2 100644
--- a/homeassistant/components/tts/__init__.py
+++ b/homeassistant/components/tts/__init__.py
@@ -24,8 +24,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.setup import async_prepare_setup_platform
 
-REQUIREMENTS = ['mutagen==1.42.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CACHE = 'cache'
@@ -43,7 +41,6 @@
 DEFAULT_CACHE = True
 DEFAULT_CACHE_DIR = 'tts'
 DEFAULT_TIME_MEMORY = 300
-DEPENDENCIES = ['http']
 DOMAIN = 'tts'
 
 MEM_CACHE_FILENAME = 'filename'
diff --git a/homeassistant/components/tuya/__init__.py b/homeassistant/components/tuya/__init__.py
index 117424fd55e17e..6f6b05100ecb8d 100644
--- a/homeassistant/components/tuya/__init__.py
+++ b/homeassistant/components/tuya/__init__.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['tuyapy==0.1.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_COUNTRYCODE = 'country_code'
diff --git a/homeassistant/components/tuya/climate.py b/homeassistant/components/tuya/climate.py
index b7a10dad8626c3..b6fd3be04edbbb 100644
--- a/homeassistant/components/tuya/climate.py
+++ b/homeassistant/components/tuya/climate.py
@@ -10,7 +10,6 @@
 
 from . import DATA_TUYA, TuyaDevice
 
-DEPENDENCIES = ['tuya']
 DEVICE_TYPE = 'climate'
 
 HA_STATE_TO_TUYA = {
diff --git a/homeassistant/components/tuya/cover.py b/homeassistant/components/tuya/cover.py
index 274f4d9386936f..6d43365e808c89 100644
--- a/homeassistant/components/tuya/cover.py
+++ b/homeassistant/components/tuya/cover.py
@@ -4,8 +4,6 @@
 
 from . import DATA_TUYA, TuyaDevice
 
-DEPENDENCIES = ['tuya']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up Tuya cover devices."""
diff --git a/homeassistant/components/tuya/fan.py b/homeassistant/components/tuya/fan.py
index 259417869dc2dc..897a82716afe0d 100644
--- a/homeassistant/components/tuya/fan.py
+++ b/homeassistant/components/tuya/fan.py
@@ -5,8 +5,6 @@
 
 from . import DATA_TUYA, TuyaDevice
 
-DEPENDENCIES = ['tuya']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up Tuya fan platform."""
diff --git a/homeassistant/components/tuya/light.py b/homeassistant/components/tuya/light.py
index 17f9b43dcbebc6..cb3f82234d3858 100644
--- a/homeassistant/components/tuya/light.py
+++ b/homeassistant/components/tuya/light.py
@@ -6,8 +6,6 @@
 
 from . import DATA_TUYA, TuyaDevice
 
-DEPENDENCIES = ['tuya']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up Tuya light platform."""
diff --git a/homeassistant/components/tuya/scene.py b/homeassistant/components/tuya/scene.py
index 24383dca6e4c11..6a8fd9d41aa367 100644
--- a/homeassistant/components/tuya/scene.py
+++ b/homeassistant/components/tuya/scene.py
@@ -3,8 +3,6 @@
 
 from . import DATA_TUYA, TuyaDevice
 
-DEPENDENCIES = ['tuya']
-
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
 
 
diff --git a/homeassistant/components/tuya/switch.py b/homeassistant/components/tuya/switch.py
index c2e32eedc59164..05b023a78ad053 100644
--- a/homeassistant/components/tuya/switch.py
+++ b/homeassistant/components/tuya/switch.py
@@ -3,8 +3,6 @@
 
 from . import DATA_TUYA, TuyaDevice
 
-DEPENDENCIES = ['tuya']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up Tuya Switch device."""
diff --git a/homeassistant/components/twilio/__init__.py b/homeassistant/components/twilio/__init__.py
index e7ba06a05f7d3b..82011f499baa92 100644
--- a/homeassistant/components/twilio/__init__.py
+++ b/homeassistant/components/twilio/__init__.py
@@ -5,9 +5,6 @@
 from homeassistant.const import CONF_WEBHOOK_ID
 from homeassistant.helpers import config_entry_flow
 
-REQUIREMENTS = ['twilio==6.19.1']
-DEPENDENCIES = ['webhook']
-
 DOMAIN = 'twilio'
 
 CONF_ACCOUNT_SID = 'account_sid'
diff --git a/homeassistant/components/twilio_call/notify.py b/homeassistant/components/twilio_call/notify.py
index ab57d7214656b1..0387ad31cb68f0 100644
--- a/homeassistant/components/twilio_call/notify.py
+++ b/homeassistant/components/twilio_call/notify.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['twilio']
-
 CONF_FROM_NUMBER = 'from_number'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/twilio_sms/notify.py b/homeassistant/components/twilio_sms/notify.py
index a04e397a5688d2..6ac6d085de5c00 100644
--- a/homeassistant/components/twilio_sms/notify.py
+++ b/homeassistant/components/twilio_sms/notify.py
@@ -10,8 +10,6 @@
                                              BaseNotificationService)
 
 _LOGGER = logging.getLogger(__name__)
-DEPENDENCIES = ["twilio"]
-
 
 CONF_FROM_NUMBER = "from_number"
 
diff --git a/homeassistant/components/twitch/sensor.py b/homeassistant/components/twitch/sensor.py
index 123de752d51255..e5223b13b01b23 100644
--- a/homeassistant/components/twitch/sensor.py
+++ b/homeassistant/components/twitch/sensor.py
@@ -7,8 +7,6 @@
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-twitch-client==0.6.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_GAME = 'game'
diff --git a/homeassistant/components/twitter/notify.py b/homeassistant/components/twitter/notify.py
index 54cd591f394575..305fec7269d49e 100644
--- a/homeassistant/components/twitter/notify.py
+++ b/homeassistant/components/twitter/notify.py
@@ -15,8 +15,6 @@
 from homeassistant.components.notify import (ATTR_DATA, PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-REQUIREMENTS = ['TwitterAPI==2.5.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CONSUMER_KEY = 'consumer_key'
diff --git a/homeassistant/components/ubee/device_tracker.py b/homeassistant/components/ubee/device_tracker.py
index f73f58f3a1f258..8e610a4f51c808 100644
--- a/homeassistant/components/ubee/device_tracker.py
+++ b/homeassistant/components/ubee/device_tracker.py
@@ -9,8 +9,6 @@
     CONF_HOST, CONF_PASSWORD, CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyubee==0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_MODEL = 'model'
diff --git a/homeassistant/components/uber/sensor.py b/homeassistant/components/uber/sensor.py
index 87d87de66ee30e..324124ca960bfb 100644
--- a/homeassistant/components/uber/sensor.py
+++ b/homeassistant/components/uber/sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['uber_rides==0.6.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_END_LATITUDE = 'end_latitude'
diff --git a/homeassistant/components/unifi/__init__.py b/homeassistant/components/unifi/__init__.py
index 7e236789a5c58f..3af450acdbfbc3 100644
--- a/homeassistant/components/unifi/__init__.py
+++ b/homeassistant/components/unifi/__init__.py
@@ -16,8 +16,6 @@
 DEFAULT_SITE_ID = 'default'
 DEFAULT_VERIFY_SSL = False
 
-REQUIREMENTS = ['aiounifi==4']
-
 
 async def async_setup(hass, config):
     """Component doesn't support configuration through configuration.yaml."""
diff --git a/homeassistant/components/unifi/device_tracker.py b/homeassistant/components/unifi/device_tracker.py
index 49e28114b17098..8bf384eef14f72 100644
--- a/homeassistant/components/unifi/device_tracker.py
+++ b/homeassistant/components/unifi/device_tracker.py
@@ -10,8 +10,6 @@
 from homeassistant.const import CONF_VERIFY_SSL, CONF_MONITORED_CONDITIONS
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['pyunifi==2.16']
-
 _LOGGER = logging.getLogger(__name__)
 CONF_PORT = 'port'
 CONF_SITE_ID = 'site_id'
diff --git a/homeassistant/components/unifi/switch.py b/homeassistant/components/unifi/switch.py
index e90da2dbcd85fe..5f33a9c08d35fb 100644
--- a/homeassistant/components/unifi/switch.py
+++ b/homeassistant/components/unifi/switch.py
@@ -11,9 +11,8 @@
 from homeassistant.core import callback
 from homeassistant.helpers.device_registry import CONNECTION_NETWORK_MAC
 
-from .const import CONF_CONTROLLER, CONF_SITE_ID, CONTROLLER_ID, DOMAIN
+from .const import CONF_CONTROLLER, CONF_SITE_ID, CONTROLLER_ID
 
-DEPENDENCIES = [DOMAIN]
 SCAN_INTERVAL = timedelta(seconds=15)
 
 LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/unifi_direct/device_tracker.py b/homeassistant/components/unifi_direct/device_tracker.py
index 29a3c58fab95ef..544314c62c5c92 100644
--- a/homeassistant/components/unifi_direct/device_tracker.py
+++ b/homeassistant/components/unifi_direct/device_tracker.py
@@ -11,8 +11,6 @@
     CONF_HOST, CONF_PASSWORD, CONF_USERNAME,
     CONF_PORT)
 
-REQUIREMENTS = ['pexpect==4.6.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_SSH_PORT = 22
diff --git a/homeassistant/components/upc_connect/device_tracker.py b/homeassistant/components/upc_connect/device_tracker.py
index 4a583b8349ad15..4b4c32182bd173 100644
--- a/homeassistant/components/upc_connect/device_tracker.py
+++ b/homeassistant/components/upc_connect/device_tracker.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['defusedxml==0.5.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CMD_DEVICES = 123
diff --git a/homeassistant/components/upcloud/__init__.py b/homeassistant/components/upcloud/__init__.py
index 7981cf948bb9ec..ea964c9027d96a 100644
--- a/homeassistant/components/upcloud/__init__.py
+++ b/homeassistant/components/upcloud/__init__.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['upcloud-api==0.4.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CORE_NUMBER = 'core_number'
diff --git a/homeassistant/components/upcloud/binary_sensor.py b/homeassistant/components/upcloud/binary_sensor.py
index a0c3c9f34c6fdc..e959f54f25486d 100644
--- a/homeassistant/components/upcloud/binary_sensor.py
+++ b/homeassistant/components/upcloud/binary_sensor.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['upcloud']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_SERVERS): vol.All(cv.ensure_list, [cv.string]),
 })
diff --git a/homeassistant/components/upcloud/switch.py b/homeassistant/components/upcloud/switch.py
index 7e84adccf5536e..ee1c1498f98f92 100644
--- a/homeassistant/components/upcloud/switch.py
+++ b/homeassistant/components/upcloud/switch.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['upcloud']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_SERVERS): vol.All(cv.ensure_list, [cv.string]),
 })
diff --git a/homeassistant/components/updater/__init__.py b/homeassistant/components/updater/__init__.py
index cb2646ea942b56..95b1372418cea6 100644
--- a/homeassistant/components/updater/__init__.py
+++ b/homeassistant/components/updater/__init__.py
@@ -18,8 +18,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['distro==1.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_RELEASE_NOTES = 'release_notes'
diff --git a/homeassistant/components/upnp/__init__.py b/homeassistant/components/upnp/__init__.py
index 5f4abcb24c7918..01f6d6159f0e3d 100644
--- a/homeassistant/components/upnp/__init__.py
+++ b/homeassistant/components/upnp/__init__.py
@@ -23,8 +23,6 @@
 from .const import LOGGER as _LOGGER
 from .device import Device
 
-REQUIREMENTS = ['async-upnp-client==0.14.7']
-
 NOTIFICATION_ID = 'upnp_notification'
 NOTIFICATION_TITLE = 'UPnP/IGD Setup'
 
diff --git a/homeassistant/components/upnp/sensor.py b/homeassistant/components/upnp/sensor.py
index 86bcee879b9dbd..411d529b33f29b 100644
--- a/homeassistant/components/upnp/sensor.py
+++ b/homeassistant/components/upnp/sensor.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['upnp']
-
 BYTES_RECEIVED = 'bytes_received'
 BYTES_SENT = 'bytes_sent'
 PACKETS_RECEIVED = 'packets_received'
diff --git a/homeassistant/components/ups/sensor.py b/homeassistant/components/ups/sensor.py
index 3ed82de41dbb95..55451d4bbfda28 100644
--- a/homeassistant/components/ups/sensor.py
+++ b/homeassistant/components/ups/sensor.py
@@ -15,8 +15,6 @@
 from homeassistant.util import Throttle, slugify
 from homeassistant.util.dt import now, parse_date
 
-REQUIREMENTS = ['upsmychoice==1.0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'ups'
diff --git a/homeassistant/components/uptimerobot/binary_sensor.py b/homeassistant/components/uptimerobot/binary_sensor.py
index 8e11966b6809d4..90b71c026dc466 100644
--- a/homeassistant/components/uptimerobot/binary_sensor.py
+++ b/homeassistant/components/uptimerobot/binary_sensor.py
@@ -8,8 +8,6 @@
 from homeassistant.const import ATTR_ATTRIBUTION, CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyuptimerobot==0.0.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_TARGET = 'target'
diff --git a/homeassistant/components/uscis/sensor.py b/homeassistant/components/uscis/sensor.py
index 501c6c9665c909..59b37c7ea65a39 100644
--- a/homeassistant/components/uscis/sensor.py
+++ b/homeassistant/components/uscis/sensor.py
@@ -13,8 +13,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['uscisstatus==0.1.1']
-
 DEFAULT_NAME = "USCIS"
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/usgs_earthquakes_feed/geo_location.py b/homeassistant/components/usgs_earthquakes_feed/geo_location.py
index 1d11b1971ccaaf..60d1f6925a4c04 100644
--- a/homeassistant/components/usgs_earthquakes_feed/geo_location.py
+++ b/homeassistant/components/usgs_earthquakes_feed/geo_location.py
@@ -16,8 +16,6 @@
     async_dispatcher_connect, dispatcher_send)
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['geojson_client==0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ALERT = 'alert'
diff --git a/homeassistant/components/usps/__init__.py b/homeassistant/components/usps/__init__.py
index 8a7d7d52255fd2..eb2882d2a56bf9 100644
--- a/homeassistant/components/usps/__init__.py
+++ b/homeassistant/components/usps/__init__.py
@@ -10,8 +10,6 @@
 from homeassistant.util import Throttle
 from homeassistant.util.dt import now
 
-REQUIREMENTS = ['myusps==1.3.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'usps'
diff --git a/homeassistant/components/usps/camera.py b/homeassistant/components/usps/camera.py
index 5b5eaca4ce293a..cd0a216517ba19 100644
--- a/homeassistant/components/usps/camera.py
+++ b/homeassistant/components/usps/camera.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['usps']
-
 SCAN_INTERVAL = timedelta(seconds=10)
 
 
diff --git a/homeassistant/components/usps/sensor.py b/homeassistant/components/usps/sensor.py
index 3e5fea5c4ee7f0..4580978da75f83 100644
--- a/homeassistant/components/usps/sensor.py
+++ b/homeassistant/components/usps/sensor.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['usps']
-
 STATUS_DELIVERED = 'delivered'
 
 
diff --git a/homeassistant/components/uvc/camera.py b/homeassistant/components/uvc/camera.py
index 65251054060484..423c27e0781a17 100644
--- a/homeassistant/components/uvc/camera.py
+++ b/homeassistant/components/uvc/camera.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.exceptions import PlatformNotReady
 
-REQUIREMENTS = ['uvcclient==0.11.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_NVR = 'nvr'
diff --git a/homeassistant/components/vacuum/__init__.py b/homeassistant/components/vacuum/__init__.py
index 02266986ccfbef..0e44d494b564d6 100644
--- a/homeassistant/components/vacuum/__init__.py
+++ b/homeassistant/components/vacuum/__init__.py
@@ -20,8 +20,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'vacuum'
-DEPENDENCIES = ['group']
-
 SCAN_INTERVAL = timedelta(seconds=20)
 
 GROUP_NAME_ALL_VACUUMS = 'all vacuum cleaners'
diff --git a/homeassistant/components/vasttrafik/sensor.py b/homeassistant/components/vasttrafik/sensor.py
index d8e9f1e7675262..45279fa8933fa2 100644
--- a/homeassistant/components/vasttrafik/sensor.py
+++ b/homeassistant/components/vasttrafik/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['vtjp==0.1.14']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ACCESSIBILITY = 'accessibility'
diff --git a/homeassistant/components/velbus/__init__.py b/homeassistant/components/velbus/__init__.py
index 4e808dc21ca5ce..73cd0d734bdd1c 100644
--- a/homeassistant/components/velbus/__init__.py
+++ b/homeassistant/components/velbus/__init__.py
@@ -7,8 +7,6 @@
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['python-velbus==2.0.22']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'velbus'
diff --git a/homeassistant/components/velbus/binary_sensor.py b/homeassistant/components/velbus/binary_sensor.py
index cbe1350bd4f667..82a1c5568fc026 100644
--- a/homeassistant/components/velbus/binary_sensor.py
+++ b/homeassistant/components/velbus/binary_sensor.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['velbus']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/velbus/climate.py b/homeassistant/components/velbus/climate.py
index 470524bb6f3dff..0471e5b87e069d 100644
--- a/homeassistant/components/velbus/climate.py
+++ b/homeassistant/components/velbus/climate.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['velbus']
-
 SUPPORT_FLAGS = (SUPPORT_TARGET_TEMPERATURE)
 
 
diff --git a/homeassistant/components/velbus/cover.py b/homeassistant/components/velbus/cover.py
index b176ab76c4b74f..fb9cea93455646 100644
--- a/homeassistant/components/velbus/cover.py
+++ b/homeassistant/components/velbus/cover.py
@@ -24,8 +24,6 @@
     vol.Required(CONF_COVERS): cv.schema_with_slug_keys(COVER_SCHEMA),
 })
 
-DEPENDENCIES = ['velbus']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up cover controlled by Velbus."""
diff --git a/homeassistant/components/velbus/sensor.py b/homeassistant/components/velbus/sensor.py
index ad78a795a30b56..b8287aef41a1b9 100644
--- a/homeassistant/components/velbus/sensor.py
+++ b/homeassistant/components/velbus/sensor.py
@@ -5,8 +5,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['velbus']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/velbus/switch.py b/homeassistant/components/velbus/switch.py
index b5ef89ca48031d..0835e2bd209bf0 100644
--- a/homeassistant/components/velbus/switch.py
+++ b/homeassistant/components/velbus/switch.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['velbus']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/velux/__init__.py b/homeassistant/components/velux/__init__.py
index a46f62dbd5fcf8..1a1444f22aefa6 100644
--- a/homeassistant/components/velux/__init__.py
+++ b/homeassistant/components/velux/__init__.py
@@ -12,8 +12,6 @@
 SUPPORTED_DOMAINS = ['cover', 'scene']
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['pyvlx==0.2.10']
-
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({
         vol.Required(CONF_HOST): cv.string,
diff --git a/homeassistant/components/velux/cover.py b/homeassistant/components/velux/cover.py
index 1893909b70608c..3c1b6ecb1eb0ff 100644
--- a/homeassistant/components/velux/cover.py
+++ b/homeassistant/components/velux/cover.py
@@ -6,8 +6,6 @@
 
 from . import DATA_VELUX
 
-DEPENDENCIES = ['velux']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/velux/scene.py b/homeassistant/components/velux/scene.py
index 614d3f349a2366..f33296780d7664 100644
--- a/homeassistant/components/velux/scene.py
+++ b/homeassistant/components/velux/scene.py
@@ -3,8 +3,6 @@
 
 from . import _LOGGER, DATA_VELUX
 
-DEPENDENCIES = ['velux']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/venstar/climate.py b/homeassistant/components/venstar/climate.py
index f3e7542af5ce9f..68b6ff88857b2a 100644
--- a/homeassistant/components/venstar/climate.py
+++ b/homeassistant/components/venstar/climate.py
@@ -17,8 +17,6 @@
     TEMP_FAHRENHEIT)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['venstarcolortouch==0.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_FAN_STATE = 'fan_state'
diff --git a/homeassistant/components/vera/__init__.py b/homeassistant/components/vera/__init__.py
index 3f4c66d238a89b..1c5d9f811ad13c 100644
--- a/homeassistant/components/vera/__init__.py
+++ b/homeassistant/components/vera/__init__.py
@@ -14,8 +14,6 @@
     EVENT_HOMEASSISTANT_STOP, CONF_LIGHTS, CONF_EXCLUDE)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['pyvera==0.2.45']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'vera'
diff --git a/homeassistant/components/vera/binary_sensor.py b/homeassistant/components/vera/binary_sensor.py
index c81fa31938f554..7482e39e721e92 100644
--- a/homeassistant/components/vera/binary_sensor.py
+++ b/homeassistant/components/vera/binary_sensor.py
@@ -6,8 +6,6 @@
 
 from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
-DEPENDENCIES = ['vera']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/vera/climate.py b/homeassistant/components/vera/climate.py
index f8ff9c21b89aae..dba074f73efafa 100644
--- a/homeassistant/components/vera/climate.py
+++ b/homeassistant/components/vera/climate.py
@@ -11,8 +11,6 @@
 
 from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
-DEPENDENCIES = ['vera']
-
 _LOGGER = logging.getLogger(__name__)
 
 OPERATION_LIST = [STATE_HEAT, STATE_COOL, STATE_AUTO, STATE_OFF]
diff --git a/homeassistant/components/vera/cover.py b/homeassistant/components/vera/cover.py
index 4cf2aac3bb4e3c..ac61a913128713 100644
--- a/homeassistant/components/vera/cover.py
+++ b/homeassistant/components/vera/cover.py
@@ -6,8 +6,6 @@
 
 from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
-DEPENDENCIES = ['vera']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/vera/light.py b/homeassistant/components/vera/light.py
index e4e315bb52e87d..4ea9ad4400a3c7 100644
--- a/homeassistant/components/vera/light.py
+++ b/homeassistant/components/vera/light.py
@@ -10,8 +10,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['vera']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Vera lights."""
diff --git a/homeassistant/components/vera/lock.py b/homeassistant/components/vera/lock.py
index 5ace07b87d7087..9ceb06d8a8658c 100644
--- a/homeassistant/components/vera/lock.py
+++ b/homeassistant/components/vera/lock.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['vera']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Find and return Vera locks."""
diff --git a/homeassistant/components/vera/scene.py b/homeassistant/components/vera/scene.py
index 5000f9bc50f9c8..f3659fa3e9b5fc 100644
--- a/homeassistant/components/vera/scene.py
+++ b/homeassistant/components/vera/scene.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['vera']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Vera scenes."""
diff --git a/homeassistant/components/vera/sensor.py b/homeassistant/components/vera/sensor.py
index 3c026046b3eea0..caec102eb1f68c 100644
--- a/homeassistant/components/vera/sensor.py
+++ b/homeassistant/components/vera/sensor.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['vera']
-
 SCAN_INTERVAL = timedelta(seconds=5)
 
 
diff --git a/homeassistant/components/vera/switch.py b/homeassistant/components/vera/switch.py
index f422e49bf42f8e..0f7654c97201e6 100644
--- a/homeassistant/components/vera/switch.py
+++ b/homeassistant/components/vera/switch.py
@@ -8,8 +8,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['vera']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Vera switches."""
diff --git a/homeassistant/components/verisure/__init__.py b/homeassistant/components/verisure/__init__.py
index 393a4066002dbf..195f065ee85da8 100644
--- a/homeassistant/components/verisure/__init__.py
+++ b/homeassistant/components/verisure/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['vsure==1.5.2', 'jsonpath==0.75']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DEVICE_SERIAL = 'device_serial'
diff --git a/homeassistant/components/version/sensor.py b/homeassistant/components/version/sensor.py
index 7c8f2b1662a151..6aed6da17f7fd5 100644
--- a/homeassistant/components/version/sensor.py
+++ b/homeassistant/components/version/sensor.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['pyhaversion==2.2.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ALL_IMAGES = [
diff --git a/homeassistant/components/vesync/switch.py b/homeassistant/components/vesync/switch.py
index d37728624ef533..d8fa3d317ff116 100644
--- a/homeassistant/components/vesync/switch.py
+++ b/homeassistant/components/vesync/switch.py
@@ -6,8 +6,6 @@
 import homeassistant.helpers.config_validation as cv
 
 
-REQUIREMENTS = ['pyvesync_v2==0.9.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/vizio/media_player.py b/homeassistant/components/vizio/media_player.py
index bab54c68a908fa..7b47a388325845 100644
--- a/homeassistant/components/vizio/media_player.py
+++ b/homeassistant/components/vizio/media_player.py
@@ -15,8 +15,6 @@
     CONF_ACCESS_TOKEN, CONF_HOST, CONF_NAME, STATE_OFF, STATE_ON)
 from homeassistant.helpers import config_validation as cv
 
-REQUIREMENTS = ['pyvizio==0.0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_SUPPRESS_WARNING = 'suppress_warning'
diff --git a/homeassistant/components/vlc/media_player.py b/homeassistant/components/vlc/media_player.py
index 41f9b5b16d4efa..be930d02b0c766 100644
--- a/homeassistant/components/vlc/media_player.py
+++ b/homeassistant/components/vlc/media_player.py
@@ -13,8 +13,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['python-vlc==1.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ARGUMENTS = 'arguments'
diff --git a/homeassistant/components/volkszaehler/sensor.py b/homeassistant/components/volkszaehler/sensor.py
index 5b808ff3c38dcb..550dc395ee72c6 100644
--- a/homeassistant/components/volkszaehler/sensor.py
+++ b/homeassistant/components/volkszaehler/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['volkszaehler==0.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_UUID = 'uuid'
diff --git a/homeassistant/components/volvooncall/__init__.py b/homeassistant/components/volvooncall/__init__.py
index 36e3959338e746..88ab41994bede3 100644
--- a/homeassistant/components/volvooncall/__init__.py
+++ b/homeassistant/components/volvooncall/__init__.py
@@ -21,8 +21,6 @@
 
 DATA_KEY = DOMAIN
 
-REQUIREMENTS = ['volvooncall==0.8.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 MIN_UPDATE_INTERVAL = timedelta(minutes=1)
diff --git a/homeassistant/components/vultr/__init__.py b/homeassistant/components/vultr/__init__.py
index 9f2efabd412b06..d7f5b30507a85a 100644
--- a/homeassistant/components/vultr/__init__.py
+++ b/homeassistant/components/vultr/__init__.py
@@ -8,8 +8,6 @@
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['vultr==0.1.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_AUTO_BACKUPS = 'auto_backups'
diff --git a/homeassistant/components/vultr/binary_sensor.py b/homeassistant/components/vultr/binary_sensor.py
index 87e8e93bda7b3c..087f38b77f5f9d 100644
--- a/homeassistant/components/vultr/binary_sensor.py
+++ b/homeassistant/components/vultr/binary_sensor.py
@@ -18,8 +18,6 @@
 
 DEFAULT_DEVICE_CLASS = 'power'
 DEFAULT_NAME = 'Vultr {}'
-DEPENDENCIES = ['vultr']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_SUBSCRIPTION): cv.string,
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string
diff --git a/homeassistant/components/vultr/sensor.py b/homeassistant/components/vultr/sensor.py
index f7e03dddace4e9..4f9692fe5c868f 100644
--- a/homeassistant/components/vultr/sensor.py
+++ b/homeassistant/components/vultr/sensor.py
@@ -15,8 +15,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Vultr {} {}'
-DEPENDENCIES = ['vultr']
-
 MONITORED_CONDITIONS = {
     ATTR_CURRENT_BANDWIDTH_USED: ['Current Bandwidth Used', 'GB',
                                   'mdi:chart-histogram'],
diff --git a/homeassistant/components/vultr/switch.py b/homeassistant/components/vultr/switch.py
index 502aaf9daa8767..33eeafbab68bc6 100644
--- a/homeassistant/components/vultr/switch.py
+++ b/homeassistant/components/vultr/switch.py
@@ -16,8 +16,6 @@
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Vultr {}'
-DEPENDENCIES = ['vultr']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_SUBSCRIPTION): cv.string,
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
diff --git a/homeassistant/components/w800rf32/__init__.py b/homeassistant/components/w800rf32/__init__.py
index d2c0cf6b968fbd..920a90fbc52c5e 100644
--- a/homeassistant/components/w800rf32/__init__.py
+++ b/homeassistant/components/w800rf32/__init__.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import (dispatcher_send)
 
-REQUIREMENTS = ['pyW800rf32==0.1']
-
 DATA_W800RF32 = 'data_w800rf32'
 DOMAIN = 'w800rf32'
 
diff --git a/homeassistant/components/w800rf32/binary_sensor.py b/homeassistant/components/w800rf32/binary_sensor.py
index c942483495306d..caa3771b88e7ad 100644
--- a/homeassistant/components/w800rf32/binary_sensor.py
+++ b/homeassistant/components/w800rf32/binary_sensor.py
@@ -15,7 +15,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['w800rf32']
 CONF_OFF_DELAY = 'off_delay'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/wake_on_lan/__init__.py b/homeassistant/components/wake_on_lan/__init__.py
index e6e12ef0afe3d7..064568cdf1b513 100644
--- a/homeassistant/components/wake_on_lan/__init__.py
+++ b/homeassistant/components/wake_on_lan/__init__.py
@@ -7,8 +7,6 @@
 from homeassistant.const import CONF_MAC
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['wakeonlan==1.1.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'wake_on_lan'
diff --git a/homeassistant/components/wake_on_lan/switch.py b/homeassistant/components/wake_on_lan/switch.py
index c81a476f0f8b2b..e08e531a644648 100644
--- a/homeassistant/components/wake_on_lan/switch.py
+++ b/homeassistant/components/wake_on_lan/switch.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.script import Script
 
-REQUIREMENTS = ['wakeonlan==1.1.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_BROADCAST_ADDRESS = 'broadcast_address'
diff --git a/homeassistant/components/waqi/sensor.py b/homeassistant/components/waqi/sensor.py
index f3000890de6800..451b8173562d4d 100644
--- a/homeassistant/components/waqi/sensor.py
+++ b/homeassistant/components/waqi/sensor.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.config_validation import PLATFORM_SCHEMA
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['waqiasync==1.0.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DOMINENTPOL = 'dominentpol'
diff --git a/homeassistant/components/waterfurnace/__init__.py b/homeassistant/components/waterfurnace/__init__.py
index 38fd44cd1c7d3b..848037f584ef18 100644
--- a/homeassistant/components/waterfurnace/__init__.py
+++ b/homeassistant/components/waterfurnace/__init__.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers import discovery
 
-REQUIREMENTS = ['waterfurnace==1.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'waterfurnace'
diff --git a/homeassistant/components/watson_iot/__init__.py b/homeassistant/components/watson_iot/__init__.py
index e9a907ee6d2e1d..cefce56de07a8b 100644
--- a/homeassistant/components/watson_iot/__init__.py
+++ b/homeassistant/components/watson_iot/__init__.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers import state as state_helper
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['ibmiotf==0.3.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ORG = 'organization'
diff --git a/homeassistant/components/waze_travel_time/sensor.py b/homeassistant/components/waze_travel_time/sensor.py
index 984a5800898dd4..282637b15076b7 100644
--- a/homeassistant/components/waze_travel_time/sensor.py
+++ b/homeassistant/components/waze_travel_time/sensor.py
@@ -13,8 +13,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['WazeRouteCalculator==0.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DURATION = 'duration'
diff --git a/homeassistant/components/webhook/__init__.py b/homeassistant/components/webhook/__init__.py
index 59be3ab1890662..7d8dda06e4d52a 100644
--- a/homeassistant/components/webhook/__init__.py
+++ b/homeassistant/components/webhook/__init__.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['http']
-
 DOMAIN = 'webhook'
 
 URL_WEBHOOK_PATH = "/api/webhook/{webhook_id}"
diff --git a/homeassistant/components/webostv/media_player.py b/homeassistant/components/webostv/media_player.py
index 35c3c456680d27..fa62e29f233be8 100644
--- a/homeassistant/components/webostv/media_player.py
+++ b/homeassistant/components/webostv/media_player.py
@@ -21,8 +21,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.script import Script
 
-REQUIREMENTS = ['pylgtv==0.1.9', 'websockets==6.0']
-
 _CONFIGURING = {}  # type: Dict[str, str]
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/webostv/notify.py b/homeassistant/components/webostv/notify.py
index 5887586df65d41..d8b1d04f8bf192 100644
--- a/homeassistant/components/webostv/notify.py
+++ b/homeassistant/components/webostv/notify.py
@@ -8,8 +8,6 @@
     ATTR_DATA, BaseNotificationService, PLATFORM_SCHEMA)
 from homeassistant.const import (CONF_FILENAME, CONF_HOST, CONF_ICON)
 
-REQUIREMENTS = ['pylgtv==0.1.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 WEBOSTV_CONFIG_FILE = 'webostv.conf'
diff --git a/homeassistant/components/wemo/__init__.py b/homeassistant/components/wemo/__init__.py
index 709b3ec8672755..017538b93d4960 100644
--- a/homeassistant/components/wemo/__init__.py
+++ b/homeassistant/components/wemo/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-REQUIREMENTS = ['pywemo==0.4.34']
-
 DOMAIN = 'wemo'
 
 # Mapping from Wemo model_name to component.
diff --git a/homeassistant/components/wemo/binary_sensor.py b/homeassistant/components/wemo/binary_sensor.py
index 6606a5bd65dc77..d727190349835b 100644
--- a/homeassistant/components/wemo/binary_sensor.py
+++ b/homeassistant/components/wemo/binary_sensor.py
@@ -10,8 +10,6 @@
 
 from . import SUBSCRIPTION_REGISTRY
 
-DEPENDENCIES = ['wemo']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/wemo/fan.py b/homeassistant/components/wemo/fan.py
index c5f3c0a16fa44f..f635010d98d8ed 100644
--- a/homeassistant/components/wemo/fan.py
+++ b/homeassistant/components/wemo/fan.py
@@ -16,7 +16,6 @@
 
 from . import SUBSCRIPTION_REGISTRY
 
-DEPENDENCIES = ['wemo']
 SCAN_INTERVAL = timedelta(seconds=10)
 DATA_KEY = 'fan.wemo'
 
diff --git a/homeassistant/components/wemo/light.py b/homeassistant/components/wemo/light.py
index ff7185cbf34862..2429bca892282e 100644
--- a/homeassistant/components/wemo/light.py
+++ b/homeassistant/components/wemo/light.py
@@ -15,8 +15,6 @@
 
 from . import SUBSCRIPTION_REGISTRY
 
-DEPENDENCIES = ['wemo']
-
 MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
 MIN_TIME_BETWEEN_FORCED_SCANS = timedelta(milliseconds=100)
 
diff --git a/homeassistant/components/wemo/switch.py b/homeassistant/components/wemo/switch.py
index 21d4cb64904aea..b8967cead3b03b 100644
--- a/homeassistant/components/wemo/switch.py
+++ b/homeassistant/components/wemo/switch.py
@@ -14,7 +14,6 @@
 
 from . import SUBSCRIPTION_REGISTRY
 
-DEPENDENCIES = ['wemo']
 SCAN_INTERVAL = timedelta(seconds=10)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/whois/sensor.py b/homeassistant/components/whois/sensor.py
index e36bdea08c3f63..5a369190c94f6f 100644
--- a/homeassistant/components/whois/sensor.py
+++ b/homeassistant/components/whois/sensor.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['python-whois==0.7.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_DOMAIN = 'domain'
diff --git a/homeassistant/components/wink/__init__.py b/homeassistant/components/wink/__init__.py
index 2b03d7711acbd6..4e25fc4fd0dede 100644
--- a/homeassistant/components/wink/__init__.py
+++ b/homeassistant/components/wink/__init__.py
@@ -20,8 +20,6 @@
 from homeassistant.helpers.event import track_time_interval
 from homeassistant.util.json import load_json, save_json
 
-REQUIREMENTS = ['python-wink==1.10.3', 'pubnubsub-handler==1.0.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'wink'
diff --git a/homeassistant/components/wink/alarm_control_panel.py b/homeassistant/components/wink/alarm_control_panel.py
index 73ca9a3cac4ac0..61699c763ce110 100644
--- a/homeassistant/components/wink/alarm_control_panel.py
+++ b/homeassistant/components/wink/alarm_control_panel.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['wink']
-
 STATE_ALARM_PRIVACY = 'Private'
 
 
diff --git a/homeassistant/components/wink/binary_sensor.py b/homeassistant/components/wink/binary_sensor.py
index f3757d7bf39624..d8f9163c46ef8b 100644
--- a/homeassistant/components/wink/binary_sensor.py
+++ b/homeassistant/components/wink/binary_sensor.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['wink']
-
 # These are the available sensors mapped to binary_sensor class
 SENSOR_TYPES = {
     'brightness': 'light',
diff --git a/homeassistant/components/wink/climate.py b/homeassistant/components/wink/climate.py
index f5e75c1fb8d591..fd02fdd4ec3ffd 100644
--- a/homeassistant/components/wink/climate.py
+++ b/homeassistant/components/wink/climate.py
@@ -26,8 +26,6 @@
 ATTR_HEAT_ON = 'heat_on'
 ATTR_COOL_ON = 'cool_on'
 
-DEPENDENCIES = ['wink']
-
 SPEED_LOW = 'low'
 SPEED_MEDIUM = 'medium'
 SPEED_HIGH = 'high'
diff --git a/homeassistant/components/wink/cover.py b/homeassistant/components/wink/cover.py
index f4c4841c2a2d0e..b8152adbfdabd5 100644
--- a/homeassistant/components/wink/cover.py
+++ b/homeassistant/components/wink/cover.py
@@ -3,8 +3,6 @@
 
 from . import DOMAIN, WinkDevice
 
-DEPENDENCIES = ['wink']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Wink cover platform."""
diff --git a/homeassistant/components/wink/fan.py b/homeassistant/components/wink/fan.py
index 52a27eb3c3df19..3fb06abc145726 100644
--- a/homeassistant/components/wink/fan.py
+++ b/homeassistant/components/wink/fan.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['wink']
-
 SPEED_AUTO = 'auto'
 SPEED_LOWEST = 'lowest'
 SUPPORTED_FEATURES = SUPPORT_DIRECTION + SUPPORT_SET_SPEED
diff --git a/homeassistant/components/wink/light.py b/homeassistant/components/wink/light.py
index 95747bcc1b2c63..0da432f7fe3be5 100644
--- a/homeassistant/components/wink/light.py
+++ b/homeassistant/components/wink/light.py
@@ -8,8 +8,6 @@
 
 from . import DOMAIN, WinkDevice
 
-DEPENDENCIES = ['wink']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Wink lights."""
diff --git a/homeassistant/components/wink/lock.py b/homeassistant/components/wink/lock.py
index 8e6fb9b280530e..01e038e9d09947 100644
--- a/homeassistant/components/wink/lock.py
+++ b/homeassistant/components/wink/lock.py
@@ -10,8 +10,6 @@
 
 from . import DOMAIN, WinkDevice
 
-DEPENDENCIES = ['wink']
-
 _LOGGER = logging.getLogger(__name__)
 
 SERVICE_SET_VACATION_MODE = 'wink_set_lock_vacation_mode'
diff --git a/homeassistant/components/wink/scene.py b/homeassistant/components/wink/scene.py
index e77402c4d45880..d0e03ef0688585 100644
--- a/homeassistant/components/wink/scene.py
+++ b/homeassistant/components/wink/scene.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['wink']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Wink platform."""
diff --git a/homeassistant/components/wink/sensor.py b/homeassistant/components/wink/sensor.py
index 3dfd704d564a36..b233089458407c 100644
--- a/homeassistant/components/wink/sensor.py
+++ b/homeassistant/components/wink/sensor.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['wink']
-
 SENSOR_TYPES = ['temperature', 'humidity', 'balance', 'proximity']
 
 
diff --git a/homeassistant/components/wink/switch.py b/homeassistant/components/wink/switch.py
index 6ee777dd1fcccd..1102087ed2a964 100644
--- a/homeassistant/components/wink/switch.py
+++ b/homeassistant/components/wink/switch.py
@@ -5,8 +5,6 @@
 
 from . import DOMAIN, WinkDevice
 
-DEPENDENCIES = ['wink']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/wirelesstag/__init__.py b/homeassistant/components/wirelesstag/__init__.py
index 28c8cb4d5156c2..61209a8293b5f8 100644
--- a/homeassistant/components/wirelesstag/__init__.py
+++ b/homeassistant/components/wirelesstag/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.dispatcher import (
     dispatcher_send)
 
-REQUIREMENTS = ['wirelesstagpy==0.4.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/wirelesstag/binary_sensor.py b/homeassistant/components/wirelesstag/binary_sensor.py
index aefa5ed34a9dad..7dd3e8df6cae1d 100644
--- a/homeassistant/components/wirelesstag/binary_sensor.py
+++ b/homeassistant/components/wirelesstag/binary_sensor.py
@@ -14,8 +14,6 @@
     DOMAIN as WIRELESSTAG_DOMAIN, SIGNAL_BINARY_EVENT_UPDATE,
     WirelessTagBaseSensor)
 
-DEPENDENCIES = ['wirelesstag']
-
 _LOGGER = logging.getLogger(__name__)
 
 # On means in range, Off means out of range
diff --git a/homeassistant/components/wirelesstag/sensor.py b/homeassistant/components/wirelesstag/sensor.py
index ca26e07b985ae9..bba3f1503c9b7e 100644
--- a/homeassistant/components/wirelesstag/sensor.py
+++ b/homeassistant/components/wirelesstag/sensor.py
@@ -12,8 +12,6 @@
 from . import (
     DOMAIN as WIRELESSTAG_DOMAIN, SIGNAL_TAG_UPDATE, WirelessTagBaseSensor)
 
-DEPENDENCIES = ['wirelesstag']
-
 _LOGGER = logging.getLogger(__name__)
 
 SENSOR_TEMPERATURE = 'temperature'
diff --git a/homeassistant/components/wirelesstag/switch.py b/homeassistant/components/wirelesstag/switch.py
index 4a2b64acda1d75..c909f10c75c67d 100644
--- a/homeassistant/components/wirelesstag/switch.py
+++ b/homeassistant/components/wirelesstag/switch.py
@@ -9,8 +9,6 @@
 
 from . import DOMAIN as WIRELESSTAG_DOMAIN, WirelessTagBaseSensor
 
-DEPENDENCIES = ['wirelesstag']
-
 _LOGGER = logging.getLogger(__name__)
 
 ARM_TEMPERATURE = 'temperature'
diff --git a/homeassistant/components/workday/binary_sensor.py b/homeassistant/components/workday/binary_sensor.py
index b505e075018acc..73fa8133c9ff38 100644
--- a/homeassistant/components/workday/binary_sensor.py
+++ b/homeassistant/components/workday/binary_sensor.py
@@ -9,8 +9,6 @@
 from homeassistant.components.binary_sensor import BinarySensorDevice
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['holidays==0.9.10']
-
 _LOGGER = logging.getLogger(__name__)
 
 # List of all countries currently supported by holidays
diff --git a/homeassistant/components/wunderlist/__init__.py b/homeassistant/components/wunderlist/__init__.py
index d67cf089b5e752..5c85c7468266ce 100644
--- a/homeassistant/components/wunderlist/__init__.py
+++ b/homeassistant/components/wunderlist/__init__.py
@@ -7,8 +7,6 @@
 from homeassistant.const import (
     CONF_NAME, CONF_ACCESS_TOKEN)
 
-REQUIREMENTS = ['wunderpy2==0.1.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'wunderlist'
diff --git a/homeassistant/components/xbox_live/sensor.py b/homeassistant/components/xbox_live/sensor.py
index 9f8a02686accb6..874c16296941cb 100644
--- a/homeassistant/components/xbox_live/sensor.py
+++ b/homeassistant/components/xbox_live/sensor.py
@@ -8,8 +8,6 @@
 from homeassistant.const import (CONF_API_KEY, STATE_UNKNOWN)
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['xboxapi==0.1.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_XUID = 'xuid'
diff --git a/homeassistant/components/xeoma/camera.py b/homeassistant/components/xeoma/camera.py
index dd0ee432707718..60f7ab2c972865 100644
--- a/homeassistant/components/xeoma/camera.py
+++ b/homeassistant/components/xeoma/camera.py
@@ -8,8 +8,6 @@
     CONF_HOST, CONF_NAME, CONF_PASSWORD, CONF_USERNAME)
 from homeassistant.helpers import config_validation as cv
 
-REQUIREMENTS = ['pyxeoma==1.4.1']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CAMERAS = 'cameras'
diff --git a/homeassistant/components/xfinity/device_tracker.py b/homeassistant/components/xfinity/device_tracker.py
index 04702355de7634..bdde650091d53b 100644
--- a/homeassistant/components/xfinity/device_tracker.py
+++ b/homeassistant/components/xfinity/device_tracker.py
@@ -9,8 +9,6 @@
     DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.const import CONF_HOST
 
-REQUIREMENTS = ['xfinity-gateway==0.0.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_HOST = '10.0.0.1'
diff --git a/homeassistant/components/xiaomi/camera.py b/homeassistant/components/xiaomi/camera.py
index 98e54d2bc73515..e541936ef0e700 100644
--- a/homeassistant/components/xiaomi/camera.py
+++ b/homeassistant/components/xiaomi/camera.py
@@ -11,7 +11,6 @@
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.aiohttp_client import async_aiohttp_proxy_stream
 
-DEPENDENCIES = ['ffmpeg']
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_BRAND = 'Xiaomi Home Camera'
diff --git a/homeassistant/components/xiaomi_aqara/__init__.py b/homeassistant/components/xiaomi_aqara/__init__.py
index 9b113170f8a751..22a8ec95c33fd8 100644
--- a/homeassistant/components/xiaomi_aqara/__init__.py
+++ b/homeassistant/components/xiaomi_aqara/__init__.py
@@ -16,8 +16,6 @@
 from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.util.dt import utcnow
 
-REQUIREMENTS = ['PyXiaomiGateway==0.12.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_GW_MAC = 'gw_mac'
diff --git a/homeassistant/components/xiaomi_miio/device_tracker.py b/homeassistant/components/xiaomi_miio/device_tracker.py
index e7ea9fbbb408d9..5e5485364dfe0b 100644
--- a/homeassistant/components/xiaomi_miio/device_tracker.py
+++ b/homeassistant/components/xiaomi_miio/device_tracker.py
@@ -8,8 +8,6 @@
 from homeassistant.const import CONF_HOST, CONF_TOKEN
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/xiaomi_miio/fan.py b/homeassistant/components/xiaomi_miio/fan.py
index 51d4780160dacf..ea00cd6d95e5eb 100644
--- a/homeassistant/components/xiaomi_miio/fan.py
+++ b/homeassistant/components/xiaomi_miio/fan.py
@@ -13,8 +13,6 @@
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Xiaomi Miio Device'
diff --git a/homeassistant/components/xiaomi_miio/light.py b/homeassistant/components/xiaomi_miio/light.py
index ec07a557342cca..fa853d1f83d44d 100644
--- a/homeassistant/components/xiaomi_miio/light.py
+++ b/homeassistant/components/xiaomi_miio/light.py
@@ -17,8 +17,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import color, dt
 
-REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Xiaomi Philips Light'
diff --git a/homeassistant/components/xiaomi_miio/remote.py b/homeassistant/components/xiaomi_miio/remote.py
index 450279c18253e2..7cb0cd68439a16 100644
--- a/homeassistant/components/xiaomi_miio/remote.py
+++ b/homeassistant/components/xiaomi_miio/remote.py
@@ -17,8 +17,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util.dt import utcnow
 
-REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
-
 _LOGGER = logging.getLogger(__name__)
 
 SERVICE_LEARN = 'xiaomi_miio_learn_command'
diff --git a/homeassistant/components/xiaomi_miio/sensor.py b/homeassistant/components/xiaomi_miio/sensor.py
index 41d3ce65b13d84..be500f665f42f6 100644
--- a/homeassistant/components/xiaomi_miio/sensor.py
+++ b/homeassistant/components/xiaomi_miio/sensor.py
@@ -9,8 +9,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Xiaomi Miio Sensor'
diff --git a/homeassistant/components/xiaomi_miio/switch.py b/homeassistant/components/xiaomi_miio/switch.py
index d1acce02e47ca9..91924c8282148b 100644
--- a/homeassistant/components/xiaomi_miio/switch.py
+++ b/homeassistant/components/xiaomi_miio/switch.py
@@ -12,8 +12,6 @@
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Xiaomi Miio Switch'
diff --git a/homeassistant/components/xiaomi_miio/vacuum.py b/homeassistant/components/xiaomi_miio/vacuum.py
index 2673a5b897ccab..ce527d41e254a1 100644
--- a/homeassistant/components/xiaomi_miio/vacuum.py
+++ b/homeassistant/components/xiaomi_miio/vacuum.py
@@ -16,8 +16,6 @@
     ATTR_ENTITY_ID, CONF_HOST, CONF_NAME, CONF_TOKEN, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Xiaomi Vacuum cleaner'
diff --git a/homeassistant/components/xiaomi_tv/media_player.py b/homeassistant/components/xiaomi_tv/media_player.py
index 2c8a2e1ea83b70..862ed3bcc396ef 100644
--- a/homeassistant/components/xiaomi_tv/media_player.py
+++ b/homeassistant/components/xiaomi_tv/media_player.py
@@ -10,8 +10,6 @@
 from homeassistant.const import CONF_HOST, CONF_NAME, STATE_OFF, STATE_ON
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pymitv==1.4.3']
-
 DEFAULT_NAME = "Xiaomi TV"
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/xmpp/notify.py b/homeassistant/components/xmpp/notify.py
index d8036f5ee1e43a..79e6edafdb453f 100644
--- a/homeassistant/components/xmpp/notify.py
+++ b/homeassistant/components/xmpp/notify.py
@@ -17,8 +17,6 @@
 from homeassistant.components.notify import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
-REQUIREMENTS = ['slixmpp==1.4.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DATA = 'data'
diff --git a/homeassistant/components/xs1/__init__.py b/homeassistant/components/xs1/__init__.py
index f67eb8fd15affc..7e245dc813590e 100644
--- a/homeassistant/components/xs1/__init__.py
+++ b/homeassistant/components/xs1/__init__.py
@@ -11,8 +11,6 @@
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-REQUIREMENTS = ['xs1-api-client==2.3.5']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'xs1'
diff --git a/homeassistant/components/xs1/climate.py b/homeassistant/components/xs1/climate.py
index 080b87c13469a2..1d12fcc90fa6c9 100644
--- a/homeassistant/components/xs1/climate.py
+++ b/homeassistant/components/xs1/climate.py
@@ -8,7 +8,6 @@
 
 from . import ACTUATORS, DOMAIN as COMPONENT_DOMAIN, SENSORS, XS1DeviceEntity
 
-DEPENDENCIES = ['xs1']
 _LOGGER = logging.getLogger(__name__)
 
 MIN_TEMP = 8
diff --git a/homeassistant/components/xs1/sensor.py b/homeassistant/components/xs1/sensor.py
index f5fdcf1fb34503..150c2da1f372a6 100644
--- a/homeassistant/components/xs1/sensor.py
+++ b/homeassistant/components/xs1/sensor.py
@@ -5,7 +5,6 @@
 
 from . import ACTUATORS, DOMAIN as COMPONENT_DOMAIN, SENSORS, XS1DeviceEntity
 
-DEPENDENCIES = ['xs1']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/xs1/switch.py b/homeassistant/components/xs1/switch.py
index d8b344fc716a39..2513d888dd878a 100644
--- a/homeassistant/components/xs1/switch.py
+++ b/homeassistant/components/xs1/switch.py
@@ -7,8 +7,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['xs1']
-
 
 async def async_setup_platform(
         hass, config, async_add_entities, discovery_info=None):
diff --git a/homeassistant/components/yale_smart_alarm/alarm_control_panel.py b/homeassistant/components/yale_smart_alarm/alarm_control_panel.py
index 1a8e03a6363120..ac1b220b12084d 100755
--- a/homeassistant/components/yale_smart_alarm/alarm_control_panel.py
+++ b/homeassistant/components/yale_smart_alarm/alarm_control_panel.py
@@ -10,8 +10,6 @@
     STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['yalesmartalarmclient==0.1.6']
-
 CONF_AREA_ID = 'area_id'
 
 DEFAULT_NAME = 'Yale Smart Alarm'
diff --git a/homeassistant/components/yamaha/media_player.py b/homeassistant/components/yamaha/media_player.py
index 53c6b466f6e3a3..6ccbb1b93dbf90 100644
--- a/homeassistant/components/yamaha/media_player.py
+++ b/homeassistant/components/yamaha/media_player.py
@@ -18,8 +18,6 @@
     STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['rxv==0.6.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ENABLED = 'enabled'
diff --git a/homeassistant/components/yamaha_musiccast/media_player.py b/homeassistant/components/yamaha_musiccast/media_player.py
index 94002a4cc55b27..cfca4ae52f3ccb 100644
--- a/homeassistant/components/yamaha_musiccast/media_player.py
+++ b/homeassistant/components/yamaha_musiccast/media_player.py
@@ -15,8 +15,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-REQUIREMENTS = ['pymusiccast==0.1.6']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORTED_FEATURES = (
diff --git a/homeassistant/components/yeelight/__init__.py b/homeassistant/components/yeelight/__init__.py
index 9b9778fd5d28be..8c2c9c957c6809 100644
--- a/homeassistant/components/yeelight/__init__.py
+++ b/homeassistant/components/yeelight/__init__.py
@@ -16,8 +16,6 @@
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import track_time_interval
 
-REQUIREMENTS = ['yeelight==0.4.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = "yeelight"
diff --git a/homeassistant/components/yeelight/binary_sensor.py b/homeassistant/components/yeelight/binary_sensor.py
index 0b44966f15c439..b2a61090a30097 100644
--- a/homeassistant/components/yeelight/binary_sensor.py
+++ b/homeassistant/components/yeelight/binary_sensor.py
@@ -6,8 +6,6 @@
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from . import DATA_YEELIGHT, DATA_UPDATED
 
-DEPENDENCIES = ['yeelight']
-
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/yeelight/light.py b/homeassistant/components/yeelight/light.py
index 8aa5c3d7300c26..fa62bdc35d7c97 100644
--- a/homeassistant/components/yeelight/light.py
+++ b/homeassistant/components/yeelight/light.py
@@ -22,8 +22,6 @@
     YEELIGHT_FLOW_TRANSITION_SCHEMA, ACTION_RECOVER, CONF_FLOW_PARAMS,
     ATTR_ACTION, ATTR_COUNT)
 
-DEPENDENCIES = ['yeelight']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_YEELIGHT = (SUPPORT_BRIGHTNESS |
diff --git a/homeassistant/components/yeelightsunflower/light.py b/homeassistant/components/yeelightsunflower/light.py
index 9252143526bfa5..a8636a280f5cd3 100644
--- a/homeassistant/components/yeelightsunflower/light.py
+++ b/homeassistant/components/yeelightsunflower/light.py
@@ -10,8 +10,6 @@
 from homeassistant.const import CONF_HOST
 import homeassistant.util.color as color_util
 
-REQUIREMENTS = ['yeelightsunflower==0.0.10']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_YEELIGHT_SUNFLOWER = (SUPPORT_BRIGHTNESS | SUPPORT_COLOR)
diff --git a/homeassistant/components/yessssms/notify.py b/homeassistant/components/yessssms/notify.py
index c229c361e2884f..5c3af591a1275f 100644
--- a/homeassistant/components/yessssms/notify.py
+++ b/homeassistant/components/yessssms/notify.py
@@ -9,8 +9,6 @@
 from homeassistant.components.notify import (PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-REQUIREMENTS = ['YesssSMS==0.2.3']
-
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/yi/camera.py b/homeassistant/components/yi/camera.py
index 7ed36b97868db6..0dbb42c384ea8b 100644
--- a/homeassistant/components/yi/camera.py
+++ b/homeassistant/components/yi/camera.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.aiohttp_client import async_aiohttp_proxy_stream
 from homeassistant.exceptions import PlatformNotReady
 
-REQUIREMENTS = ['aioftp==0.12.0']
-DEPENDENCIES = ['ffmpeg']
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_BRAND = 'YI Home Camera'
diff --git a/homeassistant/components/yr/sensor.py b/homeassistant/components/yr/sensor.py
index 4c898a7c9fe64d..c9f57abf5d916c 100644
--- a/homeassistant/components/yr/sensor.py
+++ b/homeassistant/components/yr/sensor.py
@@ -20,8 +20,6 @@
                                          async_call_later)
 from homeassistant.util import dt as dt_util
 
-REQUIREMENTS = ['xmltodict==0.11.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Weather forecast from met.no, delivered by the Norwegian " \
diff --git a/homeassistant/components/yweather/sensor.py b/homeassistant/components/yweather/sensor.py
index 129532ceb57477..fc49d79d11051a 100644
--- a/homeassistant/components/yweather/sensor.py
+++ b/homeassistant/components/yweather/sensor.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['yahooweather==0.10']
-
 _LOGGER = logging.getLogger(__name__)
 
 ATTRIBUTION = "Weather details provided by Yahoo! Inc."
diff --git a/homeassistant/components/yweather/weather.py b/homeassistant/components/yweather/weather.py
index e4eb34a039ac62..4d7986d8a5cb01 100644
--- a/homeassistant/components/yweather/weather.py
+++ b/homeassistant/components/yweather/weather.py
@@ -10,8 +10,6 @@
 from homeassistant.const import CONF_NAME, STATE_UNKNOWN, TEMP_CELSIUS
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ["yahooweather==0.10"]
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_CONDITION = 'yahoo_condition'
diff --git a/homeassistant/components/zabbix/__init__.py b/homeassistant/components/zabbix/__init__.py
index f33c60b1c3930b..041f67b37ee15e 100644
--- a/homeassistant/components/zabbix/__init__.py
+++ b/homeassistant/components/zabbix/__init__.py
@@ -8,8 +8,6 @@
     CONF_PATH, CONF_HOST, CONF_SSL, CONF_PASSWORD, CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyzabbix==0.7.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_SSL = False
diff --git a/homeassistant/components/zabbix/sensor.py b/homeassistant/components/zabbix/sensor.py
index ae2e70ede2c426..004c176570ab10 100644
--- a/homeassistant/components/zabbix/sensor.py
+++ b/homeassistant/components/zabbix/sensor.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['zabbix']
-
 _CONF_TRIGGERS = 'triggers'
 _CONF_HOSTIDS = 'hostids'
 _CONF_INDIVIDUAL = 'individual'
diff --git a/homeassistant/components/zengge/light.py b/homeassistant/components/zengge/light.py
index 8bbd56a483ec12..e066ad9da65956 100644
--- a/homeassistant/components/zengge/light.py
+++ b/homeassistant/components/zengge/light.py
@@ -10,8 +10,6 @@
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-REQUIREMENTS = ['zengge==0.2']
-
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_ZENGGE_LED = (SUPPORT_BRIGHTNESS | SUPPORT_COLOR | SUPPORT_WHITE_VALUE)
diff --git a/homeassistant/components/zeroconf/__init__.py b/homeassistant/components/zeroconf/__init__.py
index 844246528a60db..d2dcd907885782 100644
--- a/homeassistant/components/zeroconf/__init__.py
+++ b/homeassistant/components/zeroconf/__init__.py
@@ -7,11 +7,8 @@
 from homeassistant import util
 from homeassistant.const import (EVENT_HOMEASSISTANT_STOP, __version__)
 
-REQUIREMENTS = ['zeroconf==0.21.3']
-
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['api']
 DOMAIN = 'zeroconf'
 
 
diff --git a/homeassistant/components/zestimate/sensor.py b/homeassistant/components/zestimate/sensor.py
index f69e3b16ebe584..e66aad701b7972 100644
--- a/homeassistant/components/zestimate/sensor.py
+++ b/homeassistant/components/zestimate/sensor.py
@@ -12,8 +12,6 @@
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-REQUIREMENTS = ['xmltodict==0.11.0']
-
 _LOGGER = logging.getLogger(__name__)
 _RESOURCE = 'http://www.zillow.com/webservice/GetZestimate.htm'
 
diff --git a/homeassistant/components/zha/__init__.py b/homeassistant/components/zha/__init__.py
index 08362eba082845..647601701507a0 100644
--- a/homeassistant/components/zha/__init__.py
+++ b/homeassistant/components/zha/__init__.py
@@ -20,14 +20,6 @@
 from .core.patches import apply_cluster_listener_patch
 from .core.registries import establish_device_mappings
 
-REQUIREMENTS = [
-    'bellows-homeassistant==0.7.2',
-    'zigpy-homeassistant==0.3.1',
-    'zigpy-xbee-homeassistant==0.1.3',
-    'zha-quirks==0.0.7',
-    'zigpy-deconz==0.1.3'
-]
-
 DEVICE_CONFIG_SCHEMA_ENTRY = vol.Schema({
     vol.Optional(ha_const.CONF_TYPE): cv.string,
 })
diff --git a/homeassistant/components/zha/binary_sensor.py b/homeassistant/components/zha/binary_sensor.py
index b4254eb83e7a49..e9fa25c2577897 100644
--- a/homeassistant/components/zha/binary_sensor.py
+++ b/homeassistant/components/zha/binary_sensor.py
@@ -14,8 +14,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['zha']
-
 # Zigbee Cluster Library Zone Type to Home Assistant device class
 CLASS_MAPPING = {
     0x000d: 'motion',
diff --git a/homeassistant/components/zha/fan.py b/homeassistant/components/zha/fan.py
index b80834af1d7d20..9619049bc7f72a 100644
--- a/homeassistant/components/zha/fan.py
+++ b/homeassistant/components/zha/fan.py
@@ -12,8 +12,6 @@
 )
 from .entity import ZhaEntity
 
-DEPENDENCIES = ['zha']
-
 _LOGGER = logging.getLogger(__name__)
 
 # Additional speeds in zigbee's ZCL
diff --git a/homeassistant/components/zha/light.py b/homeassistant/components/zha/light.py
index 12bc12c5f6edb1..ec840d5edb39de 100644
--- a/homeassistant/components/zha/light.py
+++ b/homeassistant/components/zha/light.py
@@ -17,8 +17,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['zha']
-
 DEFAULT_DURATION = 5
 
 CAPABILITIES_COLOR_XY = 0x08
diff --git a/homeassistant/components/zha/sensor.py b/homeassistant/components/zha/sensor.py
index 13932d7dd7ab1b..b6ac70fa1876b6 100644
--- a/homeassistant/components/zha/sensor.py
+++ b/homeassistant/components/zha/sensor.py
@@ -16,8 +16,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['zha']
-
 
 # Formatter functions
 def pass_through_formatter(value):
diff --git a/homeassistant/components/zha/switch.py b/homeassistant/components/zha/switch.py
index 34c9ab2514d003..7efcbabd74e1be 100644
--- a/homeassistant/components/zha/switch.py
+++ b/homeassistant/components/zha/switch.py
@@ -13,8 +13,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['zha']
-
 
 async def async_setup_platform(hass, config, async_add_entities,
                                discovery_info=None):
diff --git a/homeassistant/components/zhong_hong/climate.py b/homeassistant/components/zhong_hong/climate.py
index 7fd2b971009e17..d01d1028507e81 100644
--- a/homeassistant/components/zhong_hong/climate.py
+++ b/homeassistant/components/zhong_hong/climate.py
@@ -14,8 +14,6 @@
 from homeassistant.helpers.dispatcher import (async_dispatcher_connect,
                                               async_dispatcher_send)
 
-REQUIREMENTS = ['zhong_hong_hvac==1.0.9']
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_GATEWAY_ADDRRESS = 'gateway_address'
diff --git a/homeassistant/components/zigbee/__init__.py b/homeassistant/components/zigbee/__init__.py
index 0e2d3587829c92..516ac3453c846d 100644
--- a/homeassistant/components/zigbee/__init__.py
+++ b/homeassistant/components/zigbee/__init__.py
@@ -11,8 +11,6 @@
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect, dispatcher_send)
 
-REQUIREMENTS = ['xbee-helper==0.0.7']
-
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'zigbee'
diff --git a/homeassistant/components/zigbee/binary_sensor.py b/homeassistant/components/zigbee/binary_sensor.py
index ccf4e70df34a18..8cf7f4d7dc02e9 100644
--- a/homeassistant/components/zigbee/binary_sensor.py
+++ b/homeassistant/components/zigbee/binary_sensor.py
@@ -8,8 +8,6 @@
 CONF_ON_STATE = 'on_state'
 
 DEFAULT_ON_STATE = 'high'
-DEPENDENCIES = ['zigbee']
-
 STATES = ['high', 'low']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/zigbee/light.py b/homeassistant/components/zigbee/light.py
index b9be0d893239d0..1ff38af02e48b4 100644
--- a/homeassistant/components/zigbee/light.py
+++ b/homeassistant/components/zigbee/light.py
@@ -8,8 +8,6 @@
 CONF_ON_STATE = 'on_state'
 
 DEFAULT_ON_STATE = 'high'
-DEPENDENCIES = ['zigbee']
-
 STATES = ['high', 'low']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/zigbee/sensor.py b/homeassistant/components/zigbee/sensor.py
index 48301ac9728ee5..480064c5715d3c 100644
--- a/homeassistant/components/zigbee/sensor.py
+++ b/homeassistant/components/zigbee/sensor.py
@@ -16,8 +16,6 @@
 CONF_MAX_VOLTS = 'max_volts'
 
 DEFAULT_VOLTS = 1.2
-DEPENDENCIES = ['zigbee']
-
 TYPES = ['analog', 'temperature']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/zigbee/switch.py b/homeassistant/components/zigbee/switch.py
index ddfd47a047e9c6..26a9e8fac835c3 100644
--- a/homeassistant/components/zigbee/switch.py
+++ b/homeassistant/components/zigbee/switch.py
@@ -5,12 +5,10 @@
 
 from . import PLATFORM_SCHEMA, ZigBeeDigitalOut, ZigBeeDigitalOutConfig
 
-DEPENDENCIES = ['zigbee']
 
 CONF_ON_STATE = 'on_state'
 
 DEFAULT_ON_STATE = 'high'
-DEPENDENCIES = ['zigbee']
 
 STATES = ['high', 'low']
 
diff --git a/homeassistant/components/ziggo_mediabox_xl/media_player.py b/homeassistant/components/ziggo_mediabox_xl/media_player.py
index 574d08e97a4504..9bbc61869240aa 100644
--- a/homeassistant/components/ziggo_mediabox_xl/media_player.py
+++ b/homeassistant/components/ziggo_mediabox_xl/media_player.py
@@ -14,8 +14,6 @@
     CONF_HOST, CONF_NAME, STATE_OFF, STATE_PAUSED, STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['ziggo-mediabox-xl==1.1.0']
-
 _LOGGER = logging.getLogger(__name__)
 
 DATA_KNOWN_DEVICES = 'ziggo_mediabox_xl_known_devices'
diff --git a/homeassistant/components/zoneminder/__init__.py b/homeassistant/components/zoneminder/__init__.py
index a4d90d523aacca..4e2585a34e3f83 100644
--- a/homeassistant/components/zoneminder/__init__.py
+++ b/homeassistant/components/zoneminder/__init__.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-REQUIREMENTS = ['zm-py==0.3.3']
-
 CONF_PATH_ZMS = 'path_zms'
 
 DEFAULT_PATH = '/zm/'
diff --git a/homeassistant/components/zoneminder/binary_sensor.py b/homeassistant/components/zoneminder/binary_sensor.py
index ce59d4573bea1d..23196cf571fe95 100644
--- a/homeassistant/components/zoneminder/binary_sensor.py
+++ b/homeassistant/components/zoneminder/binary_sensor.py
@@ -3,8 +3,6 @@
 
 from . import DOMAIN as ZONEMINDER_DOMAIN
 
-DEPENDENCIES = ['zoneminder']
-
 
 async def async_setup_platform(
         hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/zoneminder/camera.py b/homeassistant/components/zoneminder/camera.py
index fe3333fa3ed274..da625e6ee462df 100644
--- a/homeassistant/components/zoneminder/camera.py
+++ b/homeassistant/components/zoneminder/camera.py
@@ -9,8 +9,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['zoneminder']
-
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the ZoneMinder cameras."""
diff --git a/homeassistant/components/zoneminder/sensor.py b/homeassistant/components/zoneminder/sensor.py
index e205d921422be2..6a44d335a3e95e 100644
--- a/homeassistant/components/zoneminder/sensor.py
+++ b/homeassistant/components/zoneminder/sensor.py
@@ -12,8 +12,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['zoneminder']
-
 CONF_INCLUDE_ARCHIVED = "include_archived"
 
 DEFAULT_INCLUDE_ARCHIVED = False
diff --git a/homeassistant/components/zoneminder/switch.py b/homeassistant/components/zoneminder/switch.py
index 78e72c5fd4a88f..d70ba8f8fd8858 100644
--- a/homeassistant/components/zoneminder/switch.py
+++ b/homeassistant/components/zoneminder/switch.py
@@ -11,8 +11,6 @@
 
 _LOGGER = logging.getLogger(__name__)
 
-DEPENDENCIES = ['zoneminder']
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_COMMAND_ON): cv.string,
     vol.Required(CONF_COMMAND_OFF): cv.string,
diff --git a/homeassistant/components/zwave/__init__.py b/homeassistant/components/zwave/__init__.py
index 6028e5547c6c79..1b23df333c1efe 100644
--- a/homeassistant/components/zwave/__init__.py
+++ b/homeassistant/components/zwave/__init__.py
@@ -37,8 +37,6 @@
 from .util import (check_node_schema, check_value_schema, node_name,
                    check_has_unique_id, is_node_parsed)
 
-REQUIREMENTS = ['pydispatcher==2.0.5', 'homeassistant-pyozw==0.1.4']
-
 _LOGGER = logging.getLogger(__name__)
 
 CLASS_ID = 'class_id'