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Pull requests: pandas-dev/pandas
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DOC: fix doctests for pandas/core/base.py for new string dtype Docs Strings String extension data type and string data
CI: enable doctest errors again + fixup categorical examples CI Continuous Integration Docs Strings String extension data type and string data
BUG: fix to_json() with JSON Table Schema work correctly with string dtype Bug IO JSON read_json, to_json, json_normalize Strings String extension data type and string data
Output formatting: preserve quoting for string categories Categorical Categorical Data Type Output-Formatting __repr__ of pandas objects, to_string Strings String extension data type and string data
DOC: update .str.contains/match/startswith docstring examples for default behaviour Docs Strings String extension data type and string data
BUG: fix Series.str.fullmatch() and Series.str.match() with a compiled regex failing with arrow strings Arrow pyarrow functionality Strings String extension data type and string data
BUG/DEPR: logical operation with bool and string Numeric Operations Arithmetic, Comparison, and Logical operations Strings String extension data type and string data
DOC: correct and rewrite string migration section on astype(str) Docs Strings String extension data type and string data
Backport PR #62147 on branch 2.3.x (DOC: correct and rewrite string migration section on astype(str)) Docs Strings String extension data type and string data
BUG: fix fill value for gouped sum in case of unobserved categories for string dtype (empty string instead of 0) Bug Groupby Strings String extension data type and string data
DOC: Add change in .values to the string migration guide Docs Strings String extension data type and string data
Backport PR #62179 on branch 2.3.x (DOC: Add change in .values to the string migration guide) Docs Strings String extension data type and string data
[backport 2.3.x] ENH: support pathlib.Path division in StringArray (#62229) Strings String extension data type and string data
REGR: fix string contains/match methods with compiled regex with flags Regression Functionality that used to work in a prior pandas version Strings String extension data type and string data
DEPR (string): non-bool na for obj.str.contains backported Deprecate Functionality to remove in pandas Strings String extension data type and string data
[backport 2.3.x] REGR: fix string contains/match methods with compiled regex with flags (#62251) Strings String extension data type and string data
Switch default string storage from python to pyarrow (if installed) also for NA-variant of the StringDtype NA - MaskedArrays Related to pd.NA and nullable extension arrays Strings String extension data type and string data
String dtype: more informative repr (keeping brief __str__) Output-Formatting __repr__ of pandas objects, to_string Strings String extension data type and string data
#61148 by jorisvandenbossche was merged May 10, 2025 Loading… updated Sep 12, 2025
Backport PR #62283 on branch 2.3.x (BUG: fix pyarrow string regex replacement) Arrow pyarrow functionality Bug Strings String extension data type and string data
BUG: fix pyarrow string regex replacement Arrow pyarrow functionality Bug Strings String extension data type and string data
[2.3.x] Only use new string dtype repr for the new (NaN-based) string dtype Strings String extension data type and string data
CLN: remove special case for StringDtype in assert repr Clean Strings String extension data type and string data
String dtype: keep select_dtypes(include=object) selecting string columns Strings String extension data type and string data
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