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Pull requests list

[backport 2.3.x] BUG: fix fill value for gouped sum in case of unobserved categories for string dtype (empty string instead of 0) (#61909)
#61963 opened Jul 26, 2025 by jorisvandenbossche • Changes requested 2.3.2
API: consistent NaN treatment for pyarrow dtypes PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint
#61732 opened Jun 28, 2025 by jbrockmendel • Changes requested
5 of 6 tasks
13
BUG: groupby.agg should always agg API Design Apply Apply, Aggregate, Transform, Map Enhancement Groupby Needs Discussion Requires discussion from core team before further action
#57706 opened Mar 2, 2024 by rhshadrach • Changes requested
6 tasks done
3.0
6
6
PERF: improve StringArray.isna Performance Memory or execution speed performance Stale Strings String extension data type and string data
#57733 opened Mar 5, 2024 by jorisvandenbossche • Changes requested
5 tasks
11
DEPR: resample with PeriodIndex Clean Period Period data type Resample resample method Stale
#58021 opened Mar 26, 2024 by jbrockmendel • Changes requested
5 tasks
6
ENH: Implemented MultiIndex.searchsorted method ( GH14833) Enhancement MultiIndex Stale
#61435 opened May 12, 2025 by GSAUC3 • Changes requested
5 tasks done
1
30
TST (string dtype): clean-up interpolate tests Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Stale Strings String extension data type and string data Testing pandas testing functions or related to the test suite
#60653 opened Jan 3, 2025 by jorisvandenbossche Loading… 3.0
3
BUG: Raise TypeError when joining with non-DataFrame using 'on=' (GH#61434) Error Reporting Incorrect or improved errors from pandas Reshaping Concat, Merge/Join, Stack/Unstack, Explode Stale
#61454 opened May 18, 2025 by iabhi4 Loading…
4 tasks done
1
13
ENH: Added DataFrame.nsorted to select top n rows according to column-dependent order Stale
#61457 opened May 19, 2025 by MartinBraquet Loading…
5 tasks done
1
19
BUG: Raise ValueError on integer indexers containing NA; skip test for unsupported EAs(#56727) Bug ExtensionArray Extending pandas with custom dtypes or arrays. Stale Testing pandas testing functions or related to the test suite
#61465 opened May 20, 2025 by pelagiavlas Loading…
5 tasks done
1
2
BUG: Fixed issue where rolling.kurt() calculations would be effected by values outside of scope Bug Stale Window rolling, ewma, expanding
#61481 opened May 22, 2025 by eicchen Loading…
5 tasks done
1
2
API: Replace na_action parameter in Series/DataFrame/Index.map by the standard skipna API Design Apply Apply, Aggregate, Transform, Map Stale
#61530 opened Jun 1, 2025 by datapythonista Loading…
5 tasks done
15
ENH: Add force_suffixes boolean argument to pd.merge Enhancement Reshaping Concat, Merge/Join, Stack/Unstack, Explode Stale
#61498 opened May 26, 2025 by kopytjuk Loading…
2 of 5 tasks
14
BUG: Fix Series.str.zfill for ArrowDtype string arrays #61485 Stale Strings String extension data type and string data
#61533 opened Jun 1, 2025 by iabhi4 Loading…
4 tasks done
1
15
Parallelize test_sql.py - Issue #60378 IO SQL to_sql, read_sql, read_sql_query Testing pandas testing functions or related to the test suite
#61551 opened Jun 4, 2025 by dShcherbakov1 Loading…
4 tasks
1
5
BUG FIX: pandas.arrays.IntervalArray.overlaps() incorrectly documents that it accepts IntervalArray.
#62009 opened Jul 31, 2025 by khemkaran10 Loading…
1 task done
1
API/CoW: take view of underlying Block values for shallow (deep=False) copies Copy / view semantics Stale
#58966 opened Jun 10, 2024 by jorisvandenbossche • Draft
5 tasks
2
BUG: Raise ParserWarning when on_bad_lines is callable and index_col is set (GH#61882)
#61902 opened Jul 19, 2025 by AbhijitPatill Loading…
5 tasks done
3
BUG: Fix GroupBy aggregate coersion of outputs inconsistency for pyarrow dtypes Arrow pyarrow functionality Bug Groupby Stale
#61640 opened Jun 12, 2025 by heoh Loading…
5 tasks done
1
1
ENH: speed up wide DataFrame.line plots by using a single LineCollection Performance Memory or execution speed performance Visualization plotting
#61764 opened Jul 3, 2025 by EvMossan Loading…
4 tasks done
12
Improve MultiIndex label rename checks Bug MultiIndex
#61769 opened Jul 3, 2025 by TabLand • Draft
5 tasks done
1
3
BUG: Fix lost precision with common type of uint64/int64 Bug Dtype Conversions Unexpected or buggy dtype conversions isin isin method
#61679 opened Jun 19, 2025 by pbrochart Loading…
5 of 6 tasks
2
8
DOC: Show constructor arguments for some classes in pd.series.offsets Docs
#61605 opened Jun 8, 2025 by Dr-Irv Loading…
17
CLN: Use dedup_names for column name mangling in Python parser (#50371) Clean
#61670 opened Jun 16, 2025 by Veneel77 Loading…
3 of 5 tasks
1
5
BUG: to_numeric fails to convert a Pyarrow Decimal series containing NA values Arrow pyarrow functionality Bug Dtype Conversions Unexpected or buggy dtype conversions
#61659 opened Jun 14, 2025 by chilin0525 • Draft
2 of 5 tasks
1
6
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