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Pull requests: pandas-dev/pandas
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BUG: groupby.var() does not return arrow types with arrow backed series as input (GH#54627)
#64046
opened Feb 5, 2026 by
RamiNoodle733
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3 tasks
BUG: Fix inconsistent construction results between pd.array and pd.Series for dtype=str
#64045
opened Feb 5, 2026 by
RamiNoodle733
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3 tasks done
BUG: Preserve StringDtype in where with list-like other
#64040
opened Feb 5, 2026 by
sanrishi
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6 of 7 tasks
Docs: add Timedelta's nanoseconds kwarg
#64039
opened Feb 5, 2026 by
robsdedude
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Draft
2 of 7 tasks
API: Change assert_index_equal(exact=) default from equiv to True
API Design
Index
Related to the Index class or subclasses
Testing
pandas testing functions or related to the test suite
BUG: don't mark pyarrow-string to numpy array as read-only unnecessarily
#64035
opened Feb 5, 2026 by
jorisvandenbossche
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Draft
BUG: Fix
read_excel infinite loop on callable skiprows all True
#64027
opened Feb 4, 2026 by
bilichboris
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5 of 6 tasks
BUG: Fix JsonReader to handle nrows more robustly
#64025
opened Feb 4, 2026 by
bilichboris
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5 tasks done
ENH: add hint for linear fill method error
#64018
opened Feb 4, 2026 by
jiangmuran
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3 of 7 tasks
fix: incorrect fastparquet after multiple parquets
#64016
opened Feb 4, 2026 by
bittoby
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4 of 7 tasks
BUG: Fix read_hdf failing on generic datetime64 dtype #64006
#64008
opened Feb 3, 2026 by
sanrishi
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3 of 7 tasks
fix: dataframe reindex multiple column fill
Indexing
Related to indexing on series/frames, not to indexes themselves
Regression
Functionality that used to work in a prior pandas version
BUG: DataFrame.rank does not preserve ExtensionArray dtypes
#63987
opened Feb 2, 2026 by
weeknd415
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4 tasks done
DOC: clarify deprecation of DataFrame.stack parameters
#63973
opened Feb 1, 2026 by
Asmi768
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BUG: Fix searchsorted with NA values in masked arrays
#63963
opened Jan 31, 2026 by
mwael-labs
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6 of 7 tasks
DOC: Fix spelling mistakes and incomplete sentences in Timestamp docstrings
Docs
Error Reporting
Incorrect or improved errors from pandas
Timestamp
pd.Timestamp and associated methods
BUG: refs not set when creating DataFrame from Series/Index with Stri…
#63937
opened Jan 29, 2026 by
kjmin622
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6 tasks done
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