CLN: Move period.pyx to tslibs/period.pyx (#18555)

Author: AaronCritchley

pandas/_libs/index.pyx

@@ -17,7 +17,8 @@ from tslibs.conversion cimport maybe_datetimelike_to_i8
 
 from hashtable cimport HashTable
 
-from pandas._libs import algos, period as periodlib, hashtable as _hash
+from pandas._libs import algos, hashtable as _hash
+from pandas._libs.tslibs import period as periodlib
 from pandas._libs.tslib import Timestamp, Timedelta
 from datetime import datetime, timedelta, date
 

pandas/_libs/period.pyx renamed to pandas/_libs/tslibs/period.pyx

@@ -21,26 +21,23 @@ from cpython.datetime cimport PyDateTime_Check, PyDateTime_IMPORT
 # import datetime C API
 PyDateTime_IMPORT
 
-from tslibs.np_datetime cimport (pandas_datetimestruct,
-                                 dtstruct_to_dt64, dt64_to_dtstruct,
-                                 is_leapyear)
-
+from np_datetime cimport (pandas_datetimestruct, dtstruct_to_dt64,
+                          dt64_to_dtstruct, is_leapyear)
 
 cimport util
 from util cimport is_period_object, is_string_object, INT32_MIN
 
-from missing cimport is_null_datetimelike
-from pandas._libs.tslib import Timestamp
-from tslibs.timezones cimport (
-    is_utc, is_tzlocal, get_utcoffset, get_dst_info)
-from tslibs.timedeltas cimport delta_to_nanoseconds
-
-from tslibs.parsing import (parse_time_string, NAT_SENTINEL,
-                            _get_rule_month, _MONTH_NUMBERS)
-from tslibs.frequencies cimport get_freq_code
-from tslibs.resolution import resolution, Resolution
-from tslibs.nattype import nat_strings, NaT, iNaT
-from tslibs.nattype cimport _nat_scalar_rules, NPY_NAT
+from pandas._libs.missing cimport is_null_datetimelike
+from timestamps import Timestamp
+from timezones cimport is_utc, is_tzlocal, get_utcoffset, get_dst_info
+from timedeltas cimport delta_to_nanoseconds
+
+from parsing import (parse_time_string, NAT_SENTINEL,
+                     _get_rule_month, _MONTH_NUMBERS)
+from frequencies cimport get_freq_code
+from resolution import resolution, Resolution
+from nattype import nat_strings, NaT, iNaT
+from nattype cimport _nat_scalar_rules, NPY_NAT
 
 from pandas.tseries import offsets
 from pandas.tseries import frequencies

pandas/compat/pickle_compat.py

@@ -74,7 +74,11 @@ def load_reduce(self):
         ('pandas._libs.sparse', 'BlockIndex'),
     ('pandas.tslib', 'Timestamp'):
         ('pandas._libs.tslib', 'Timestamp'),
-    ('pandas._period', 'Period'): ('pandas._libs.period', 'Period'),
+
+    # 18543 moving period
+    ('pandas._period', 'Period'): ('pandas._libs.tslibs.period', 'Period'),
+    ('pandas._libs.period', 'Period'):
+        ('pandas._libs.tslibs.period', 'Period'),
 
     # 18014 moved __nat_unpickle from _libs.tslib-->_libs.tslibs.nattype
     ('pandas.tslib', '__nat_unpickle'):

pandas/core/indexes/accessors.py

@@ -14,7 +14,7 @@
 from pandas.core.accessor import PandasDelegate
 from pandas.core.base import NoNewAttributesMixin, PandasObject
 from pandas.core.indexes.datetimes import DatetimeIndex
-from pandas._libs.period import IncompatibleFrequency  # noqa
+from pandas._libs.tslibs.period import IncompatibleFrequency  # noqa
 from pandas.core.indexes.period import PeriodIndex
 from pandas.core.indexes.timedeltas import TimedeltaIndex
 from pandas.core.algorithms import take_1d

pandas/core/indexes/datetimelike.py

@@ -25,7 +25,7 @@
 
 import pandas.io.formats.printing as printing
 from pandas._libs import lib, iNaT, NaT
-from pandas._libs.period import Period
+from pandas._libs.tslibs.period import Period
 from pandas._libs.tslibs.timedeltas import delta_to_nanoseconds
 
 from pandas.core.indexes.base import Index, _index_shared_docs

pandas/core/indexes/datetimes.py

@@ -54,8 +54,9 @@
 
 from pandas._libs import (lib, index as libindex, tslib as libts,
                           algos as libalgos, join as libjoin,
-                          Timestamp, period as libperiod)
-from pandas._libs.tslibs import timezones, conversion, fields
+                          Timestamp)
+from pandas._libs.tslibs import (timezones, conversion, fields,
+                                 period as libperiod)
 
 # -------- some conversion wrapper functions
 

pandas/core/indexes/period.py

@@ -31,12 +31,12 @@
 import pandas.tseries.offsets as offsets
 
 from pandas._libs.lib import infer_dtype
-from pandas._libs import tslib, period, index as libindex
-from pandas._libs.period import (Period, IncompatibleFrequency,
-                                 get_period_field_arr, _validate_end_alias,
-                                 _quarter_to_myear)
+from pandas._libs import tslib, index as libindex
+from pandas._libs.tslibs.period import (Period, IncompatibleFrequency,
+                                        get_period_field_arr,
+                                        _validate_end_alias, _quarter_to_myear)
 from pandas._libs.tslibs.fields import isleapyear_arr
-from pandas._libs.tslibs import resolution
+from pandas._libs.tslibs import resolution, period
 from pandas._libs.tslibs.timedeltas import delta_to_nanoseconds
 
 from pandas.core.base import _shared_docs

pandas/core/resample.py

@@ -24,7 +24,7 @@
 
 from pandas._libs import lib, tslib
 from pandas._libs.lib import Timestamp
-from pandas._libs.period import IncompatibleFrequency
+from pandas._libs.tslibs.period import IncompatibleFrequency
 
 from pandas.util._decorators import Appender
 from pandas.core.generic import _shared_docs

pandas/tests/indexes/period/test_indexing.py

@@ -9,7 +9,7 @@
 from pandas._libs import tslib, tslibs
 from pandas import (PeriodIndex, Series, DatetimeIndex,
                     period_range, Period)
-from pandas._libs import period as libperiod
+from pandas._libs.tslibs import period as libperiod
 
 
 class TestGetItem(object):

pandas/tests/indexes/period/test_tools.py

@@ -6,7 +6,7 @@
 import pandas.core.indexes.period as period
 from pandas.compat import lrange
 from pandas.tseries.frequencies import get_freq, MONTHS
-from pandas._libs.period import period_ordinal, period_asfreq
+from pandas._libs.tslibs.period import period_ordinal, period_asfreq
 from pandas import (PeriodIndex, Period, DatetimeIndex, Timestamp, Series,
                     date_range, to_datetime, period_range)