Use _attr_native_value

[ludeeus]

Using _attr_state for SensorEntity is being removed in home-assistant/core#54624

Fixes Fixes #50

This will require Home Assistant Core 2021.9.0+

[danieldotnl]

Wow, courtesy of the HA team? 😄

[danieldotnl]

I'm currently on vacation but will merge and create a pre-release when 2021.9 is released.

[ludeeus]

You can do this to make it compatible with current/future versions:

from homeassistant.const import __version__ as HA_VERSION
from awesomeversion import AwesomeVersion

_USES_NATIVE_VALUE = AwesomeVersion(HA_VERSION) >= "2021.9.0"

...

if _USES_NATIVE_VALUE:
	self._attr_native_value = value
else:
	self._attr_state = value

[danieldotnl]

Tnx, but not on my phone 😄