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BUG: StringArray __array_ufunc__ validation of result should not require strings

Bug

StringsString extension data type and string dataString extension data type and string data

Status: Open.

#40800 In pandas-dev/pandas;

· johnflavin opened on Apr 6, 2021

BUG: FutureWarning about 'isin' where it is not used

Bug

expressionspd.eval, querypd.eval, query

WarningsWarnings that appear or should be added to pandasWarnings that appear or should be added to pandas

Status: Open.

#57028 In pandas-dev/pandas;

· workflowsguy opened on Jan 23, 2024

BUG: DataFrame.join(other) raises InvalidIndexError if column index is CategoricalIndex

Bug

CategoricalCategorical Data TypeCategorical Data Type

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Open.

#61675 In pandas-dev/pandas;

· tvoipio opened on Jun 18, 2025

Pandas 2.3.3 and rhel7 compatibility

BuildLibrary building on various platformsLibrary building on various platforms

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

Status: Open.

#62515 In pandas-dev/pandas;

· rtsscy opened on Sep 30, 2025

Backport PR #62313 on branch 2.3.x (DOC: Fix NaT and NA API docs)

Docs

Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolatenp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate

Status: Open (in progress).

pandas-dev/pandasnumber 62521

#62521 In pandas-dev/pandas;

· meeseeksmachine opened on Sep 30, 2025