Merge branch 'fix_61188' of https://github.com/Mohit-Kundu/pandas into fix_61188

Author: Mohit-Kundu

doc/source/whatsnew/v3.0.0.rst

@@ -641,8 +641,8 @@ Categorical
 
 Datetimelike
 ^^^^^^^^^^^^
-- Bug in :attr:`is_year_start` where a DateTimeIndex constructed via a date_range with frequency 'MS' wouldn't have the correct year or quarter start attributes (:issue:`57377`)
 - Bug in :attr:`Series.dt.date` where Series with all NaT values would raise an error when compared to a datetime.date (:issue:`61188`)
+- Bug in :attr:`is_year_start` where a DateTimeIndex constructed via a date_range with frequency 'MS' wouldn't have the correct year or quarter start attributes (:issue:`57377`)
 - Bug in :class:`DataFrame` raising ``ValueError`` when ``dtype`` is ``timedelta64`` and ``data`` is a list containing ``None`` (:issue:`60064`)
 - Bug in :class:`Timestamp` constructor failing to raise when ``tz=None`` is explicitly specified in conjunction with timezone-aware ``tzinfo`` or data (:issue:`48688`)
 - Bug in :func:`date_range` where the last valid timestamp would sometimes not be produced (:issue:`56134`)

pandas/core/indexes/accessors.py

@@ -109,10 +109,7 @@ def _delegate_property_get(self, name: str):
             index = self._parent.index
         # return the result as a Series
         return Series(
-            result,
-            index=index,
-            name=self.name,
-            dtype=result.dtype
+            result, index=index, name=self.name, dtype=result.dtype
         ).__finalize__(self._parent)
 
     def _delegate_property_set(self, name: str, value, *args, **kwargs) -> NoReturn:

pandas/tests/series/indexing/test_datetime.py

@@ -492,6 +492,7 @@ def test_compare_datetime_with_all_none():
     expected = Series([False, False])
     tm.assert_series_equal(result, expected)
 
+
 def test_dt_date_dtype_all_nat_is_object():
     # Ensure .dt.date on all-NaT Series returns object dtype and not datetime64
     # GH#61188
@@ -503,8 +504,9 @@ def test_dt_date_dtype_all_nat_is_object():
 
     tm.assert_series_equal(result, expected)
 
+
 def test_dt_date_all_nat_le_date():
-    #All-NaT Series should not raise error when compared to a datetime.date
+    # All-NaT Series should not raise error when compared to a datetime.date
     # GH#61188
     s = Series([pd.NaT, pd.NaT])
     s = pd.to_datetime(s)