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BUG: DataFrame.explode fails with str dtype

Bug

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

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

Status: Open (in progress).

pandas-dev/pandasnumber 61623

#61623 In pandas-dev/pandas;

· rhshadrach opened on Jun 10, 2025

 ·  

2.3.1

BUG: Fix pivot_table margins to include NaN groups when dropna=False

Bug

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

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

Status: Open (in progress).

pandas-dev/pandasnumber 61524

#61524 In pandas-dev/pandas;

· iabhi4 opened on May 31, 2025

BUG: margin for pivot_table is incorrect with NA column/index values

Bug

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

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

Status: Open.

#61509 In pandas-dev/pandas;

· vtraag opened on May 28, 2025

BUG: pandas.pivot_table margins, dropna and observed parameters not producing expected result

Bug

Needs InfoClarification about behavior needed to assess issueClarification about behavior needed to assess issue

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

Status: Open.

#61469 In pandas-dev/pandas;

· hugotomasf opened on May 21, 2025

BUG: Raise TypeError when joining with non-DataFrame using 'on=' (GH#61434)

Error ReportingIncorrect or improved errors from pandasIncorrect or improved errors from pandas

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

Status: Open (in progress).

pandas-dev/pandasnumber 61454

#61454 In pandas-dev/pandas;

· iabhi4 opened on May 18, 2025

BUG: NA are coerced in to NaN by concat

Bug

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

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

PDEP missing valuesIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprintIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint

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

Status: Open.

#61303 In pandas-dev/pandas;

· davetapley opened on Apr 17, 2025

BUG: join unexpectedly created extra column start with "key_"

Bug

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

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

Status: Open.

#61294 In pandas-dev/pandas;

· albb318 opened on Apr 15, 2025

BUG: Exception with <code>unstack(sort=False)</code> and NA in index

Bug

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

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

Status: Open.

#61221 In pandas-dev/pandas;

· jlumpe opened on Apr 3, 2025

ENH: merge_asof threshold minimum

Enhancement

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

Needs InfoClarification about behavior needed to assess issueClarification about behavior needed to assess issue

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

Status: Open.

#61164 In pandas-dev/pandas;

· Lituchy opened on Mar 21, 2025

DOC: Pivot() example call incorrectly used and would give "error: duplicate index"

Error ReportingIncorrect or improved errors from pandasIncorrect or improved errors from pandas

Needs InfoClarification about behavior needed to assess issueClarification about behavior needed to assess issue

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

Status: Open.

#61058 In pandas-dev/pandas;

· mheskett opened on Mar 5, 2025

ENH: Make merge_asof preserve the index

Closing CandidateMay be closeable, needs more eyeballsMay be closeable, needs more eyeballs

Enhancement

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

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

Status: Open.

#60919 In pandas-dev/pandas;

· wahsmail opened on Feb 12, 2025

BUG: crosstab(aggfunc='skew') raises IndexError: single positional indexer is out-of-bounds

Bug

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

Status: Open.

#60768 In pandas-dev/pandas;

· sfc-gh-mvashishtha opened on Jan 23, 2025