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Pull requests: pandas-dev/pandas
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BUG: raise error when converting np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Stale
NaT to int Missing-data #62479 by Alvaro-Kothe was closed Nov 9, 2025 Loading…
5 tasks done
Fix alignment in Series subtraction with MultiIndex, Index and NaN values (#60908) Bug Indexing Related to indexing on series/frames, not to indexes themselves Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate MultiIndex Stale
#61381 by rit4rosa was closed Oct 5, 2025 Loading…
Backport PR #60454 on branch 2.3.x (String dtype: coerce missing values in indexers for string dtype Index) Indexing Related to indexing on series/frames, not to indexes themselves Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Strings String extension data type and string data
BUG: Fix groupby().any() behavior for timedelta columns with all null valuesfix issue #59712 Bug Groupby Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Stale
#59750 by 40gilad was closed Oct 28, 2024 Loading…
TYP: Fix NatType.combine type definition Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Typing type annotations, mypy/pyright type checking
#59503 by mroeschke was closed Aug 14, 2024 Loading…
ENH: Processing of .mask() for pd.NA #56844 Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#58136 by mafaldam was closed May 8, 2024 Loading…
5 tasks
REF: Use numpy set methods in interpolate Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Refactor Internal refactoring of code
Remove parts that reference bfill,ffill,pad,backfill in limit_direction Docs Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#57097 by shriyakalakata was closed Feb 28, 2024 • Draft
1 of 5 tasks
BUG: Fix reading of multi_index dataframe with NaN Bug IO CSV read_csv, to_csv Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#57070 by CYHSM was closed Feb 28, 2024 Loading…
3 of 5 tasks
BUG fix for datetime null (closes #56853) Bug datetime.date stdlib datetime.date support Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#56869 by NicoACloutier was closed Feb 28, 2024 Loading…
5 tasks done
Backport PR #56616 on branch 2.2.x (BUG: Add limit_area to EA ffill/bfill) Bug ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
ENH: Implement Series.interpolate for ArrowDtype Arrow pyarrow functionality Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
Backport PR #55347 on branch 2.1.x (BUG: interpolate raising wrong error for ea) ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
Cythonize is_null_slice Internals Related to non-user accessible pandas implementation Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#55037 by WillAyd was closed Sep 14, 2023 Loading…
Backport PR #54927 on branch 2.1.x (REGR: interpolate raising if fill_value is given) Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
Backport PR #54820 on branch 2.1.x (REF: Dispatch ArrowExtensionArray.fillna methods to pad_or_backfill) Arrow pyarrow functionality Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
BUG: pd.SparseDtype('int', 0) == pd.SparseDtype('int', pd.NA) returns pd.NA Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Sparse Sparse Data Type
#54776 by kshitiz305 was closed Sep 25, 2023 Loading…
1 of 5 tasks
#51826_Fixed bug when np.nan is used as index value with .reindex on … Interval Interval data type Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#54500 by raj-thapa was closed Aug 15, 2023 Loading…
3 tasks done
Backport PR #53505 on branch 2.0.x (BUG: reindex with expansion and non-nanosecond dtype) Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Non-Nano datetime64/timedelta64 with non-nanosecond resolution
ENH: EA.fillna copy=True ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
BUG: clean_fill_method failing to raise Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
DEPR: inplace in GroupBy.fillna Deprecate Functionality to remove in pandas Groupby Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Transformations e.g. cumsum, diff, rank
#53438 by rhshadrach was closed Jun 3, 2023 Loading…
5 tasks done
BUG: NaT instead of error for timestamp concat with None Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Reshaping Concat, Merge/Join, Stack/Unstack, Explode Stale
#53042 by srkds was closed Aug 1, 2023 Loading…
3 of 5 tasks
BUG: Modify get_indexer_non_unique to account for nan keys Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Stale
#52655 by ltauro was closed May 17, 2023 Loading…
3 of 5 tasks
GH-52093 : AttributeError raised with pd.concat between a None and Timestamp Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#52433 by ramvikrams was closed Apr 18, 2023 Loading…
1 of 5 tasks
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