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Pull requests: pandas-dev/pandas

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Pull requests list

ENH: register pyarrow extension types on pandas import (GH#41432)
#66375 opened Jul 19, 2026 by aboderinsamuel Loading…
6 of 7 tasks
1
DOC: update Series and DataFrame comparison fill_value docs to include str (#66349)
#66371 opened Jul 19, 2026 by Joosboy Loading…
1
DOC: document pd.col Expression objects
#66370 opened Jul 19, 2026 by Joosboy Loading…
3 of 7 tasks
1
BUG: str.split()/rsplit() with no separator on ArrowDtype keeps empty whitespace tokens
#66369 opened Jul 19, 2026 by gautamvarmadatla Contributor Loading…
6 of 7 tasks
1
BUG: respect re.ASCII flag in str.match/fullmatch (GH#66348)
#66367 opened Jul 19, 2026 by mangodxd Loading…
1
BUG: fix str.split/partition/rpartition returning string on categorical (GH#66341)
#66366 opened Jul 19, 2026 by mangodxd Loading…
1
CI: Update pixi.lock CI Continuous Integration
#66365 opened Jul 19, 2026 by github-actions Bot Loading…
DOC: clarify Series.map elementwise usage
#66364 opened Jul 18, 2026 by Joosboy Loading…
3 of 7 tasks
1
DOC: pandas-dev/pandas-stubs#1824 update the default value of merge_cells
#66363 opened Jul 18, 2026 by cmp0xff Contributor Loading…
7 tasks
BUG: DataFrame.fillna with ArrowDtype(pa.null()) causes Arrow C++ assertion failure
#66362 opened Jul 18, 2026 by deeferentleeg Loading…
1 task done
1
BUG: OverflowError on DataFrame.dtypes.to_json Bug IO JSON read_json, to_json, json_normalize
#66361 opened Jul 18, 2026 by natmokval Contributor Loading…
1 task done
1
1
BUG: add isinstance check for datetime index
#66360 opened Jul 18, 2026 by codingeologist • Draft
1
DEPS: Bump pyarrow minimum version to 16.0 Build Library building on various platforms Dependencies Required and optional dependencies
#66358 opened Jul 17, 2026 by natmokval Contributor Loading…
2
BUG: #66356 - Fix 4 segfaults from ujson_dumps values that are abnormal
#66357 opened Jul 17, 2026 by stestagg Loading…
4 of 7 tasks
1
3
doc: update fill_value parameter documentation for Series comparison methods
#66354 opened Jul 16, 2026 by Dodothereal Loading…
1
BUG: read_sql with dtype_backend="pyarrow" returns date/time as string (#56551)
#66353 opened Jul 16, 2026 by aboderinsamuel Loading…
6 of 7 tasks
1
BUG: normalize missing groupby MultiIndex codes
#66352 opened Jul 16, 2026 by xoxonut Contributor Loading…
6 of 7 tasks
1
PERF: fix performance regression in string construction from GH-65831
#66351 opened Jul 16, 2026 by Alvaro-Kothe Member Loading…
3 of 7 tasks
BUG: Do not force re.UNICODE if re.ASCII flag is passed
#66350 opened Jul 16, 2026 by ajayraj30002 Loading…
5 of 7 tasks
1
BUG: setitem with nullable NA Series and non-default index raised (GH#62473)
#66345 opened Jul 15, 2026 by gaurav0107 Loading…
7 tasks done
1
BUG: Fix parallel read_csv divergence with low_memory=False and EmptyDataError (#66259)
#66344 opened Jul 15, 2026 by GiTaDi-CrEaTe Loading…
1
8
BUG: Fix str.split on categorical dtype returning string lists (# 66341)
#66343 opened Jul 15, 2026 by benhurstephen Loading…
2 tasks done
1
Fix sectioning in categorical.rst
#66342 opened Jul 15, 2026 by wjandrea Contributor • Draft
1 of 2 tasks
2
DOC: clarify sort_index determinism to fix #63154
#66340 opened Jul 15, 2026 by wasim-builds Loading…
3
PERF: use pyarrow kernel for Series.str.zfill with ArrowStringArray
#66339 opened Jul 15, 2026 by fangchenli Member Loading…
5 of 7 tasks
4
ProTip! Updated in the last three days: updated:>2026-07-16.