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String dtype: map builtin str alias to StringDtype backported Strings String extension data type and string data
DOC: Updating str_slice docstring Docs Strings String extension data type and string data
#22569 by JesperDramsch was merged Oct 4, 2018 Loading…
PERF: groupby with string dtype Groupby Performance Memory or execution speed performance Regression Functionality that used to work in a prior pandas version Strings String extension data type and string data
REF: StringArray._from_sequence, use less memory Performance Memory or execution speed performance Strings String extension data type and string data
TST(string dtype): Resolve xfails in pytables IO HDF5 read_hdf, HDFStore Strings String extension data type and string data Testing pandas testing functions or related to the test suite
REF (string): de-duplicate ArrowStringArray methods Arrow pyarrow functionality backported Refactor Internal refactoring of code Strings String extension data type and string data
TST(string dtype): Resolve HDF5 xfails in test_put.py IO HDF5 read_hdf, HDFStore Strings String extension data type and string data
BUG: fixed .str.contains(..., na=False) for categorical series Categorical Categorical Data Type Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Strings String extension data type and string data
PERF: add exact kw to to_datetime to enable faster regex format parsing API Design Datetime Datetime data dtype Performance Memory or execution speed performance Strings String extension data type and string data
Follow-up #20347: incorporate review about _get_series_list Clean Strings String extension data type and string data
BUG: Index.str.partition not nan-safe (#23558) Bug Indexing Related to indexing on series/frames, not to indexes themselves Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Strings String extension data type and string data
ENH: Arrow backed string array - implement factorize() method without casting to objects ExtensionArray Extending pandas with custom dtypes or arrays. Strings String extension data type and string data
CLN: replace %s syntax with .format in pandas.io.parsers Clean Strings String extension data type and string data
ENH: Allow literal (non-regex) replacement using .str.replace #16808 API Design Strings String extension data type and string data
ENH: Series.str.get_dummies() raise on string type (follow up to PR #59577) Strings String extension data type and string data
REF (string): de-duplicate str_endswith, startswith backported Refactor Internal refactoring of code Strings String extension data type and string data
DOC: Update Working with text data for 3.0 Docs Strings String extension data type and string data
#62581 by rhshadrach was merged Nov 4, 2025 Loading…
1 of 5 tasks
BUG: is_string_dtype(pd.Index([], dtype='O')) returns False Bug Dtype Conversions Unexpected or buggy dtype conversions Strings String extension data type and string data
#54997 by natmokval was merged Oct 4, 2023 Loading…
4 tasks done
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