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Pull requests: pandas-dev/pandas
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TST: add fillna test for filling with Categorical Categorical Categorical Data Type Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Needs Tests Unit test(s) needed to prevent regressions Stale
#62319 by thaiv28 was closed Nov 1, 2025 Loading…
3 tasks done
BUG: Added deprecation warning to Timestamp constructor Deprecate Functionality to remove in pandas Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Stale Timestamp pd.Timestamp and associated methods
BUG: fix #59965 skipna=True operations don't skip NaN in FloatingArrays Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate NA - MaskedArrays Related to pd.NA and nullable extension arrays Reduction Operations sum, mean, min, max, etc. Stale
#59997 by cooolheater was closed Feb 10, 2025 Loading…
3 tasks done
feat!: Removes Relating to inplace parameter or equivalent Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Resample resample method Stale
inplace option for `pandas.core.resample.Resampler.i… inplace #58847 by cbpygit was closed Oct 29, 2024 Loading…
5 tasks done
ENH: Processing of .mask() for pd.NA #56844 Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Stale
#58730 by mafaldam was closed Jul 22, 2024 Loading…
1 of 5 tasks
PDEP-11: Change default of dropna to False Deprecate Functionality to remove in pandas Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate PDEP pandas enhancement proposal Stale
#53094 by rhshadrach was closed Jun 8, 2025 Loading…
BUG: CategoricalIndex.get_indexer issue with NaNs (#45361) Categorical Categorical Data Type Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#45373 by Shashank-Shet was merged Jan 28, 2022 Loading…
2 of 4 tasks
TYP: Made ffill_indexer arg-type ndarray Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Typing type annotations, mypy/pyright type checking
Bugfix for constructing empty Series, with index, using ExtensionDtyp… Bug ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
BUG: IntegerArray/FloatingArray constructors mismatched NAs ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate NA - MaskedArrays Related to pd.NA and nullable extension arrays
EA: fillna should accept same type #32414 ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Stale Testing pandas testing functions or related to the test suite
#43230 by Bhavay-2001 was closed Jan 16, 2022 Loading…
1 task done
TST Providing unit test to snippet GH32414 Categorical Categorical Data Type ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Testing pandas testing functions or related to the test suite
#43136 by Bhavay-2001 was closed Aug 27, 2021 Loading…
1 task done
BUG GH#40498 Add mask to fillna to only modify indexes specified in v… Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
BUG: groupby any/all raising with pd.NA object data Bug Groupby Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
API: allow nan-likes in StringArray constructor ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Strings String extension data type and string data
#41412 by lithomas1 was closed Apr 24, 2022 Loading…
4 tasks done
BUG: isin fails to correctly compare None values. Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Regression Functionality that used to work in a prior pandas version
#41145 by DriesSchaumont was closed Oct 4, 2021 • Draft
2 of 4 tasks
TST: Add test to verify DataFrame's constructor doesn't convert Nones to strings on string columns Constructors Series/DataFrame/Index/pd.array Constructors Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Testing pandas testing functions or related to the test suite
#40912 by cgarciae was closed Sep 1, 2021 Loading…
3 tasks done
TYP overload fillna #40737 Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Typing type annotations, mypy/pyright type checking
BUG: fillna overwriting other missing vals Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#40509 by mzeitlin11 was closed Apr 3, 2021 Loading…
4 tasks done
DOC: fix template substitution in pad/bfill docstrings Docs Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
correction to get time interpolation correct Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#39886 by oricou was closed Apr 11, 2021 Loading…
2 tasks
MultiIndex: support isna, fixes #34019 Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate MultiIndex Needs Info Clarification about behavior needed to assess issue Stale
#38558 by FRidh was closed Feb 11, 2021 Loading…
1 of 5 tasks
ENH: column-wise DataFrame.fillna with Series/Dict value Enhancement Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#38352 by arw2019 was closed Jul 11, 2021 Loading…
5 tasks done
DOC: Add examples for filling missing data Docs Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Stale
#38163 by chrystalchan-academic was closed Jan 24, 2021 Loading…
5 tasks
REF: use _validate_fill_value in Index.insert Index Related to the Index class or subclasses Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Refactor Internal refactoring of code
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