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Pull requests: pandas-dev/pandas
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BUG: Fixed PandasArray.__setitem__ with str Bug ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: 35977 Adding regex support for ExtensionBlock replace method ExtensionArray Extending pandas with custom dtypes or arrays. Internals Related to non-user accessible pandas implementation replace replace method Stale
#36038 by cgangwar11 was closed Feb 11, 2021 Loading…
5 tasks done
BUG: IntegerArray/FloatingArray constructors mismatched NAs ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate NA - MaskedArrays Related to pd.NA and nullable extension arrays
TST: Verify operators with IntegerArray and list-likes (22606) ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
BUG: incorrect EA casting in groubpy.agg Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays. Groupby
#38254 by jbrockmendel was closed Jan 24, 2021 Loading…
4 of 5 tasks
API: Allow other na values in StringArray Constructor ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Strings String extension data type and string data
PERF: efficient argmax/argmin for SparseArray ExtensionArray Extending pandas with custom dtypes or arrays. Performance Memory or execution speed performance Sparse Sparse Data Type
REF: let EAs override WrappedCythonOp groupby implementations ExtensionArray Extending pandas with custom dtypes or arrays. Groupby
BUG: setitem with boolean mask and series as value is broken for Series with EA type ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves Needs Tests Unit test(s) needed to prevent regressions
BUG: Redefine IndexOpsMixin.size, fix #25580. Bug ExtensionArray Extending pandas with custom dtypes or arrays.
POC: 2D support for 1D ExtensionArray subclasses Enhancement ExtensionArray Extending pandas with custom dtypes or arrays.
#26954 by jbrockmendel was closed Jul 1, 2019 Loading…
StringArray comparisions return BooleanArray API Design ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#30231 by TomAugspurger was merged Dec 18, 2019 Loading…
TYP: ExtensionArray.take accept np.ndarray ExtensionArray Extending pandas with custom dtypes or arrays. Typing type annotations, mypy/pyright type checking
ENH: Categorical.empty API Design Categorical Categorical Data Type ExtensionArray Extending pandas with custom dtypes or arrays.
searchsorted, repeat broken off from #24024 Datetime Datetime data dtype ExtensionArray Extending pandas with custom dtypes or arrays.
[ENH] Use default EA repr for IntervalArray ExtensionArray Extending pandas with custom dtypes or arrays. Interval Interval data type
is_bool_dtype for ExtensionArrays Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves
BUG: Fix ExtensionArray binary op protocol ExtensionArray Extending pandas with custom dtypes or arrays. Numeric Operations Arithmetic, Comparison, and Logical operations
#61990 by tisjayy was merged Aug 14, 2025 Loading…
3 tasks done
REF: remove special-casing for internal EAs from format_array ExtensionArray Extending pandas with custom dtypes or arrays. Output-Formatting __repr__ of pandas objects, to_string
#26965 by simonjayhawkins was closed Aug 28, 2019 Loading…
3 tasks
DOC: add doc on ExtensionArray and extending pandas Docs ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: Outer/right merge with EA dtypes cast to object Bug ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
Bug fix - extension array with 2d datetime64 ExtensionArray Extending pandas with custom dtypes or arrays. Output-Formatting __repr__ of pandas objects, to_string
REF: move range-generation functions to EA mixin classes ExtensionArray Extending pandas with custom dtypes or arrays. Refactor Internal refactoring of code
ProTip! What’s not been updated in a month: updated:<2025-11-04.