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Pull requests: pandas-dev/pandas
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PDEP-13: The pandas Logical Type System PDEP pandas enhancement proposal Stale
#58455 by WillAyd was closed Apr 21, 2025 Loading…
ENH: add arrow engine to read_csv Enhancement IO CSV read_csv, to_csv Performance Memory or execution speed performance Stale
#31817 by lithomas1 was closed Dec 8, 2020 Loading…
4 of 5 tasks
PDEP-13: Deprecate the apply method on Series and DataFrame and make the agg and transform methods operate on series data PDEP pandas enhancement proposal Stale
#54747 by topper-123 was closed Apr 23, 2024 Loading…
[READY] perf improvements for strftime Datetime Datetime data dtype Performance Memory or execution speed performance Stale
#51298 by smarie was closed Oct 5, 2025 Loading…
5 tasks done
ENH/PERF: enable column-wise reductions for EA-backed columns ExtensionArray Extending pandas with custom dtypes or arrays. Numeric Operations Arithmetic, Comparison, and Logical operations Performance Memory or execution speed performance Stale
#32867 by jorisvandenbossche was closed Jun 16, 2021 Loading…
PDEP-1 Revision (Decision Making) PDEP pandas enhancement proposal Stale
#53576 by noatamir was merged Apr 1, 2024 Loading…
ENH: Add calamite engine to Required and optional dependencies Enhancement IO Excel read_excel, to_excel Stale
read_excel Dependencies #50581 by kostyafarber was closed May 15, 2023 Loading…
4 of 5 tasks
BUG: Bug in loc did not change dtype when complete column was assigned Dtype Conversions Unexpected or buggy dtype conversions Indexing Related to indexing on series/frames, not to indexes themselves Stale
#37749 by phofl was closed Jun 16, 2021 Loading…
8 tasks done
REGR: be able to read Stata files without reading them fully into memory IO Stata read_stata, to_stata Performance Memory or execution speed performance Stale
PERF: Slow performance of to_dict (#46470) IO Data IO issues that don't fit into a more specific label Performance Memory or execution speed performance Stale
Add 'color' and 'size' to arguments API - Consistency Internal Consistency of API/Behavior Stale Visualization plotting
ENH: add masked algorithm for mean() function ExtensionArray Extending pandas with custom dtypes or arrays. Stale
Value counts normalize Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug Groupby Stale
#33652 by DataInformer was closed Jun 16, 2021 Loading…
6 tasks done
Enable many complex number tests Complex Complex Numbers Stale
#54761 by MichaelTiemannOSC was closed Oct 29, 2024 Loading…
4 of 5 tasks
Categorical.(get|from)_dummies Categorical Categorical Data Type Enhancement Stale
#34426 by clbarnes was closed Mar 21, 2021 Loading…
5 tasks done
Deprecate groupby/pivot observed=False default Categorical Categorical Data Type Deprecate Functionality to remove in pandas Needs Discussion Requires discussion from core team before further action Stale
#35967 by jseabold was closed Jul 11, 2021 Loading…
5 tasks done
Add more overflow tests for timedelta64 operations Stale Testing pandas testing functions or related to the test suite Timedelta Timedelta data type
ENH: IO support for R data files with C extension Enhancement IO Data IO issues that don't fit into a more specific label Stale
#41386 by ParfaitG was closed Aug 18, 2021 Loading…
5 tasks done
BUG: Breaking change to offsets.pyx - quarter offset classes Frequency DateOffsets Stale
#39890 by Pawel-Kranzberg was closed Aug 17, 2021 • Draft
2 of 4 tasks
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
PERF: fix #32976 slow group by for categorical columns Categorical Categorical Data Type Performance Memory or execution speed performance Stale
#33739 by rtlee9 was closed Nov 6, 2020 Loading…
5 tasks done
Fix multiindex loc nan Bug Groupby MultiIndex Stale
#43943 by CloseChoice was closed Feb 13, 2022 Loading…
4 tasks done
ENH:included anti join functionality Enhancement Reshaping Concat, Merge/Join, Stack/Unstack, Explode Stale
#43056 by debnathshoham was closed Feb 13, 2022 Loading…
3 of 4 tasks
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