From 9ccaf51b1bf50d1b92076cc097504fd958a9049f Mon Sep 17 00:00:00 2001
From: JustinZhengBC <justinzhengbc@gmail.com>
Date: Tue, 16 Oct 2018 17:28:46 -0700
Subject: [PATCH] CLN import from pandas.core.arrays when possible

---
 pandas/core/arrays/datetimes.py          | 4 ++--
 pandas/core/arrays/period.py             | 2 +-
 pandas/core/groupby/generic.py           | 2 +-
 pandas/tests/arrays/test_datetimelike.py | 6 +++---
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/pandas/core/arrays/datetimes.py b/pandas/core/arrays/datetimes.py
index 4cc33d7afd6c8..0f07a9cf3c0e0 100644
--- a/pandas/core/arrays/datetimes.py
+++ b/pandas/core/arrays/datetimes.py
@@ -508,7 +508,7 @@ def _add_delta(self, delta):
         The result's name is set outside of _add_delta by the calling
         method (__add__ or __sub__)
         """
-        from pandas.core.arrays.timedeltas import TimedeltaArrayMixin
+        from pandas.core.arrays import TimedeltaArrayMixin
 
         if isinstance(delta, (Tick, timedelta, np.timedelta64)):
             new_values = self._add_delta_td(delta)
@@ -803,7 +803,7 @@ def to_period(self, freq=None):
         pandas.PeriodIndex: Immutable ndarray holding ordinal values
         pandas.DatetimeIndex.to_pydatetime: Return DatetimeIndex as object
         """
-        from pandas.core.arrays.period import PeriodArrayMixin
+        from pandas.core.arrays import PeriodArrayMixin
 
         if self.tz is not None:
             warnings.warn("Converting to PeriodArray/Index representation "
diff --git a/pandas/core/arrays/period.py b/pandas/core/arrays/period.py
index 8624ddd8965e8..16fa9ccb43b4d 100644
--- a/pandas/core/arrays/period.py
+++ b/pandas/core/arrays/period.py
@@ -302,7 +302,7 @@ def to_timestamp(self, freq=None, how='start'):
         -------
         DatetimeArray/Index
         """
-        from pandas.core.arrays.datetimes import DatetimeArrayMixin
+        from pandas.core.arrays import DatetimeArrayMixin
 
         how = libperiod._validate_end_alias(how)
 
diff --git a/pandas/core/groupby/generic.py b/pandas/core/groupby/generic.py
index 957f3be8cf6ae..63bf67854e5cd 100644
--- a/pandas/core/groupby/generic.py
+++ b/pandas/core/groupby/generic.py
@@ -44,7 +44,7 @@
 from pandas.core.dtypes.cast import maybe_downcast_to_dtype
 from pandas.core.base import SpecificationError, DataError
 from pandas.core.index import Index, MultiIndex, CategoricalIndex
-from pandas.core.arrays.categorical import Categorical
+from pandas.core.arrays import Categorical
 from pandas.core.internals import BlockManager, make_block
 from pandas.compat.numpy import _np_version_under1p13
 
diff --git a/pandas/tests/arrays/test_datetimelike.py b/pandas/tests/arrays/test_datetimelike.py
index 6bb4241451b3f..bfce5fb1462d9 100644
--- a/pandas/tests/arrays/test_datetimelike.py
+++ b/pandas/tests/arrays/test_datetimelike.py
@@ -5,9 +5,9 @@
 import pandas as pd
 import pandas.util.testing as tm
 
-from pandas.core.arrays.datetimes import DatetimeArrayMixin
-from pandas.core.arrays.timedeltas import TimedeltaArrayMixin
-from pandas.core.arrays.period import PeriodArrayMixin
+from pandas.core.arrays import (DatetimeArrayMixin,
+                                TimedeltaArrayMixin,
+                                PeriodArrayMixin)
 
 
 # TODO: more freq variants