Log Message:
py-pandas: updated to 2.2.1

What’s new in 2.2.1 (February 22, 2024)

These are the changes in pandas 2.2.1. See Release notes for a full changelog \ 
including other versions of pandas.

Enhancements

Added pyarrow pip extra so users can install pandas and pyarrow with pip with \ 
pip install pandas[pyarrow] (GH 54466)
Fixed regressions

Fixed memory leak in read_csv() (GH 57039)
Fixed performance regression in Series.combine_first() (GH 55845)
Fixed regression causing overflow for near-minimum timestamps (GH 57150)
Fixed regression in concat() changing long-standing behavior that always sorted \ 
the non-concatenation axis when the axis was a DatetimeIndex (GH 57006)
Fixed regression in merge_ordered() raising TypeError for \ 
fill_method="ffill" and how="left" (GH 57010)
Fixed regression in pandas.testing.assert_series_equal() defaulting to \ 
check_exact=True when checking the Index (GH 57067)
Fixed regression in read_json() where an Index would be returned instead of a \ 
RangeIndex (GH 57429)
Fixed regression in wide_to_long() raising an AttributeError for string columns \ 
(GH 57066)
Fixed regression in DataFrameGroupBy.idxmin(), DataFrameGroupBy.idxmax(), \ 
SeriesGroupBy.idxmin(), SeriesGroupBy.idxmax() ignoring the skipna argument (GH \ 
57040)
Fixed regression in DataFrameGroupBy.idxmin(), DataFrameGroupBy.idxmax(), \ 
SeriesGroupBy.idxmin(), SeriesGroupBy.idxmax() where values containing the \ 
minimum or maximum value for the dtype could produce incorrect results (GH \ 
57040)
Fixed regression in CategoricalIndex.difference() raising KeyError when other \ 
contains null values other than NaN (GH 57318)
Fixed regression in DataFrame.groupby() raising ValueError when grouping by a \ 
Series in some cases (GH 57276)
Fixed regression in DataFrame.loc() raising IndexError for non-unique, masked \ 
dtype indexes where result has more than 10,000 rows (GH 57027)
Fixed regression in DataFrame.loc() which was unnecessarily throwing \ 
“incompatible dtype warning” when expanding with partial row indexer and \ 
multiple columns (see PDEP6) (GH 56503)
Fixed regression in DataFrame.map() with na_action="ignore" not being \ 
respected for NumPy nullable and ArrowDtypes (GH 57316)
Fixed regression in DataFrame.merge() raising ValueError for certain types of \ 
3rd-party extension arrays (GH 57316)
Fixed regression in DataFrame.query() with all NaT column with object dtype (GH \ 
57068)
Fixed regression in DataFrame.shift() raising AssertionError for axis=1 and \ 
empty DataFrame (GH 57301)
Fixed regression in DataFrame.sort_index() not producing a stable sort for a \ 
index with duplicates (GH 57151)
Fixed regression in DataFrame.to_dict() with orient='list' and datetime or \ 
timedelta types returning integers (GH 54824)
Fixed regression in DataFrame.to_json() converting nullable integers to floats \ 
(GH 57224)
Fixed regression in DataFrame.to_sql() when method="multi" is passed \ 
and the dialect type is not Oracle (GH 57310)
Fixed regression in DataFrame.transpose() with nullable extension dtypes not \ 
having F-contiguous data potentially causing exceptions when used (GH 57315)
Fixed regression in DataFrame.update() emitting incorrect warnings about \ 
downcasting (GH 57124)
Fixed regression in DataFrameGroupBy.idxmin(), DataFrameGroupBy.idxmax(), \ 
SeriesGroupBy.idxmin(), SeriesGroupBy.idxmax() ignoring the skipna argument (GH \ 
57040)
Fixed regression in DataFrameGroupBy.idxmin(), DataFrameGroupBy.idxmax(), \ 
SeriesGroupBy.idxmin(), SeriesGroupBy.idxmax() where values containing the \ 
minimum or maximum value for the dtype could produce incorrect results (GH \ 
57040)
Fixed regression in ExtensionArray.to_numpy() raising for non-numeric masked \ 
dtypes (GH 56991)
Fixed regression in Index.join() raising TypeError when joining an empty index \ 
to a non-empty index containing mixed dtype values (GH 57048)
Fixed regression in Series.astype() introducing decimals when converting from \ 
integer with missing values to string dtype (GH 57418)
Fixed regression in Series.pct_change() raising a ValueError for an empty Series \ 
(GH 57056)
Fixed regression in Series.to_numpy() when dtype is given as float and the data \ 
contains NaNs (GH 57121)
Fixed regression in addition or subtraction of DateOffset objects with \ 
millisecond components to datetime64 Index, Series, or DataFrame (GH 57529)

Bug fixes

Fixed bug in pandas.api.interchange.from_dataframe() which was raising for \ 
Nullable integers (GH 55069)
Fixed bug in pandas.api.interchange.from_dataframe() which was raising for empty \ 
inputs (GH 56700)
Fixed bug in pandas.api.interchange.from_dataframe() which wasn’t converting \ 
columns names to strings (GH 55069)
Fixed bug in DataFrame.__getitem__() for empty DataFrame with Copy-on-Write \ 
enabled (GH 57130)
Fixed bug in PeriodIndex.asfreq() which was silently converting frequencies \ 
which are not supported as period frequencies instead of raising an error (GH \ 
56945)