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Backport PR #62147 on branch 2.3.x (DOC: correct and rewrite string migration section on astype(str))

Docs

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

Status: Open (in progress).

pandas-dev/pandasnumber 62151

#62151 In pandas-dev/pandas;

· meeseeksmachine opened on Aug 20, 2025

· 

2.3.2

· 2/11

BUG: Inconsistent behaviour when merging reset-ed MultiIndex dataframe

Bug

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

Status: Open.

#62150 In pandas-dev/pandas;

· renkeven opened on Aug 20, 2025

REF: get rid of StringArrayNumpySemantics

Status: Open (in progress).

pandas-dev/pandasnumber 62149

#62149 In pandas-dev/pandas;

· jbrockmendel opened on Aug 19, 2025

· 30/37

RLS: 2.3.2

Release

Status: Open.

#62148 In pandas-dev/pandas;

· jorisvandenbossche opened on Aug 19, 2025

BUG: Fails to Build on Raspberry Pi 3 (tested both 2.1.4, 2.3.1 and main Branch)

Bug

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

Status: Open.

#62146 In pandas-dev/pandas;

· luckylinux opened on Aug 19, 2025

1 comment

fix enum typing from _lib

Status: Open (in progress).

pandas-dev/pandasnumber 62145

#62145 In pandas-dev/pandas;

· Dr-Irv opened on Aug 19, 2025

· 31/37

2

BUG / API: setitem on pandas object fails if underlying numpy array is read-only

API Design

IndexingRelated to indexing on series/frames, not to indexes themselvesRelated to indexing on series/frames, not to indexes themselves

Status: Open.

#62144 In pandas-dev/pandas;

· jorisvandenbossche opened on Aug 19, 2025

3 comments

DOC: Clarify is_scalar docstring to specify scalar vs non-scalar and add Enum example (GH#62063)

Status: Open (in progress).

pandas-dev/pandasnumber 62143

#62143 In pandas-dev/pandas;

· Aniketsy opened on Aug 19, 2025

· 32/37

DEPR: Categorical with values not present in categories

Status: Open (in progress).

pandas-dev/pandasnumber 62142

#62142 In pandas-dev/pandas;

· jbrockmendel opened on Aug 18, 2025

· 32/37

ENH: Consistent name property for the iterates in DataFrameGroupBy

API - ConsistencyInternal Consistency of API/BehaviorInternal Consistency of API/Behavior

Bug

Enhancement

Groupby

Status: Open.

#62141 In pandas-dev/pandas;

· FelixBenning opened on Aug 18, 2025

2 comments

BUG: Fix to_csv microsecond inconsistency (#62111)

Status: Open (in progress).

pandas-dev/pandasnumber 62139

#62139 In pandas-dev/pandas;

· prazian opened on Aug 18, 2025

· 32/37

BUG: Preserve day freq on DatetimeIndex subtraction

Status: Open (in progress).

pandas-dev/pandasnumber 62138

#62138 In pandas-dev/pandas;

· 23f-1000003 opened on Aug 18, 2025

· 31/37

1

ENH: Rename DataFrame._append to _append_internal

Status: Open (in progress).

pandas-dev/pandasnumber 62137

#62137 In pandas-dev/pandas;

· whyvineet opened on Aug 18, 2025

· 32/37

DOC: Deprecate empty string defaults in DataFrame.join suffixes

Status: Open (in progress).

pandas-dev/pandasnumber 62136

#62136 In pandas-dev/pandas;

· Roline-Stapny opened on Aug 18, 2025

· 6/39

BUG: Fix groupby.apply() dropping _metadata from subclassed DataFrame

Status: Open (in progress).

pandas-dev/pandasnumber 62135

#62135 In pandas-dev/pandas;

· MengAiDev opened on Aug 18, 2025

· 29/37

3

BUG: groupby.apply() drops _metadata from subclassed DataFrame

Bug

metadata_metadata, .attrs_metadata, .attrs

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

Status: Open.

#62134 In pandas-dev/pandas;

· JBGreisman opened on Aug 17, 2025

1

ENH: Enable destination aware scope for dataset attributes metadata propagation copy routines

Status: Draft (not ready).

pandas-dev/pandasnumber 62131

#62131 In pandas-dev/pandas;

· dangreb opened on Aug 16, 2025

· 32/37

4

Resolved issue 62094

Status: Open (in progress).

pandas-dev/pandasnumber 62130

#62130 In pandas-dev/pandas;

· saw1998 opened on Aug 16, 2025

· 7/39

1

REF/API: Move ArrowDtype(pa.foo_string()) into StringDtype(...)

Status: Open.

#62129 In pandas-dev/pandas;

· jbrockmendel opened on Aug 16, 2025

7 comments

BUG: Addition of __set_module__ breaks PyCharm PyDev debugger functionalities

Status: Open.

#62121 In pandas-dev/pandas;

· dangreb opened on Aug 15, 2025

· 

3.0

2 comments

Switch default string storage from python to pyarrow (if installed) also for NA-variant of the StringDtype

NA - MaskedArraysRelated to pd.NA and nullable extension arraysRelated to pd.NA and nullable extension arrays

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

Status: Open (in progress).

pandas-dev/pandasnumber 62118

#62118 In pandas-dev/pandas;

· jorisvandenbossche opened on Aug 15, 2025

· 

3.0

· 31/37

6

fix(dtypes): ensure consistent behavior of is_string_dtype for Categorical

Status: Open (in progress).

pandas-dev/pandasnumber 62117

#62117 In pandas-dev/pandas;

· MengAiDev opened on Aug 15, 2025

· 32/37

BUG: to_csv uses inconsistent microsecond format for datetimes with timezones

Bug

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

Status: Open.

#62111 In pandas-dev/pandas;

· insperatum opened on Aug 15, 2025

1

2 comments



CI: Always install pandas in non-editable mode in CI

CIContinuous IntegrationContinuous Integration

Status: Open (in progress).

pandas-dev/pandasnumber 62110

#62110 In pandas-dev/pandas;

· mroeschke opened on Aug 14, 2025

· 6/41

1

BUG: pd.api.types.is_string_dtype() returns inconsistent results for Categorical series vs dtype

Bug

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

Status: Open.

#62109 In pandas-dev/pandas;

· nsarang opened on Aug 14, 2025

2