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Pull requests: pandas-dev/pandas
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BUG: str.find returns byte offset instead of character offset with str dtype
Arrow
pyarrow functionality
Bug
Strings
String extension data type and string data
BUG: raise ValueError when unit passed to to_datetime with datetime-like input
#64132
opened Feb 13, 2026 by
Mr-Neutr0n
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CLN: Use dedup_names for duplicate column renaming
#64131
opened Feb 13, 2026 by
pierreeurope
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CLN: Enable ruff rule PLR1730 (if-stmt-min-max)
#64130
opened Feb 13, 2026 by
Moisan
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3 of 7 tasks
PERF: Avoid drop_duplicates(keep=False) in DataFrame.__getitem__ for single-column access
#64127
opened Feb 12, 2026 by
tuhinsharma121
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Draft
1 task
REG: Allow RE2 syntax in str.contains and str.replace
#64122
opened Feb 11, 2026 by
sanrishi
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5 of 7 tasks
added a regression test for issue 57702 (StringDtype consistency)
#64120
opened Feb 11, 2026 by
tejallada
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BUG: groupby.agg behavior changes in the present of args/kwargs
Apply
Apply, Aggregate, Transform, Map
Bug
Groupby
DEPR: groupby.agg unpacking arrays of 1 element
Apply
Apply, Aggregate, Transform, Map
Deprecate
Functionality to remove in pandas
Groupby
Resample
resample method
ENH: Allow UDFs to return a NumPy array in groupby.agg
Apply
Apply, Aggregate, Transform, Map
Enhancement
Groupby
DOC: fix Index.to_frame name parameter description
Docs
#64105
opened Feb 10, 2026 by
yasumorishima
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DOC: clarify float_precision behavior in read_csv and read_table
#64103
opened Feb 10, 2026 by
Asmi768
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3 of 7 tasks
Fixed is_re_compile error on regex with wrong syntax
#64099
opened Feb 9, 2026 by
bilichboris
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5 of 6 tasks
DOC: Clarify float_precision behavior in read_csv and read_table docs
#64095
opened Feb 9, 2026 by
sabasiddique1
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3 of 7 tasks
TST: Add regression test for groupby.var/std arrow dtype retention
#64093
opened Feb 9, 2026 by
immohamedadhil
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3 tasks done
BUG: DataFrame.loc fills b'' instead of NaN when adding new row and columns simultaneously (#58316)
Bug
Indexing
Related to indexing on series/frames, not to indexes themselves
setitem-with-expansion
Revise
NDFrame.resample doc to reflect changes in #61985
#64089
opened Feb 9, 2026 by
maread99
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7 tasks
BUG: loc setitem with duplicate columns and new columns corrupts Data…
#64079
opened Feb 8, 2026 by
roeimed0
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6 of 7 tasks
ENH: Support pd.col expressions in Series.case_when (GH#64070)
#64077
opened Feb 8, 2026 by
sanrishi
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5 of 7 tasks
BUG: Series.iloc assignment with dtype=object converts dictionary to Series
#64075
opened Feb 8, 2026 by
roeimed0
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6 of 7 tasks
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