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BUG: Take method of NumpyExtensionArray now returns another extension array with the correct dtype. Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug ExtensionArray Extending pandas with custom dtypes or arrays.
#62502 by aijams was merged Nov 16, 2025 Loading… updated Nov 16, 2025
5 tasks done
BUG: Raise ValueError on integer indexers containing NA; skip test for unsupported EAs(#56727) Bug ExtensionArray Extending pandas with custom dtypes or arrays. Stale Testing pandas testing functions or related to the test suite
#61465 by pelagiavlas was closed Oct 5, 2025 Loading… updated Oct 5, 2025
5 tasks done
BUG: .describe() doesn't work for EAs #61707 Bug ExtensionArray Extending pandas with custom dtypes or arrays.
#61910 by kernelism was closed Oct 5, 2025 Loading… updated Oct 5, 2025
5 tasks done
Backport PR #61085 on branch 2.3.x (DEPS: Update NumpyExtensionArray repr for NEP51) ExtensionArray Extending pandas with custom dtypes or arrays. Output-Formatting __repr__ of pandas objects, to_string
ENH: add NDArrayBackedExtensionArray to public API API Design ExtensionArray Extending pandas with custom dtypes or arrays. Stale
#56755 by andrewgsavage was closed Oct 29, 2024 Loading… updated Oct 29, 2024
5 tasks
ENH: Move factorizing for merge to EA interface ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode Stale
#54975 by phofl was closed Apr 23, 2024 Loading… updated Apr 23, 2024
5 tasks
TST: Fix setitem parametrizations ExtensionArray Extending pandas with custom dtypes or arrays. Stale Testing pandas testing functions or related to the test suite
#56890 by lopof was closed Apr 9, 2024 Loading… updated Apr 9, 2024
3 of 4 tasks
Support structural subtyping with ExtensionArray ExtensionArray Extending pandas with custom dtypes or arrays.
ENH: EADtype._find_compatible_dtype ExtensionArray Extending pandas with custom dtypes or arrays. setitem-with-expansion Stale
#53106 by jbrockmendel was closed Jan 10, 2024 Loading… updated Jan 10, 2024
6 of 7 tasks
Backport PR #56616 on branch 2.2.x (BUG: Add limit_area to EA ffill/bfill) Bug ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
Revert "REF: remove unnecessary na_value fixture" ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
ENH: EA._from_scalars Enhancement ExtensionArray Extending pandas with custom dtypes or arrays.
#53089 by jbrockmendel was merged Oct 16, 2023 Loading… updated Oct 16, 2023
5 tasks done
BUG: _validate_setitem_value fails to raise for PandasArray #51044 Error Reporting Incorrect or improved errors from pandas ExtensionArray Extending pandas with custom dtypes or arrays. Stale
#54575 by ArchPh03nix was closed Oct 12, 2023 Loading… updated Oct 12, 2023
2 of 5 tasks
Backport PR #55347 on branch 2.1.x (BUG: interpolate raising wrong error for ea) ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
Add TODO note to BlockManager.fast_xs for EA dtypes ExtensionArray Extending pandas with custom dtypes or arrays.
Backport PR #54838 on branch 2.1.x (Don't expose EA.pad_or_backfill to users + switch to DeprecationWarning) ExtensionArray Extending pandas with custom dtypes or arrays.
Backport PR #54800 on branch 2.1.x (ExtensionArray.fillna: start with DeprecationWarning about added copy keyword) ExtensionArray Extending pandas with custom dtypes or arrays.
Backport PR #54721 on branch 2.1.x (BUG/WARN: Passing EA object to dtype instead of an instance) ExtensionArray Extending pandas with custom dtypes or arrays. Warnings Warnings that appear or should be added to pandas
Backport PR #54508 on branch 2.1.x (PERF: DataFrame.iloc[int] for EA dtypes) ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves Performance Memory or execution speed performance
Backport PR #54341 on branch 2.1.x (PERF: axis=1 reductions with EA dtypes) ExtensionArray Extending pandas with custom dtypes or arrays. Performance Memory or execution speed performance Reduction Operations sum, mean, min, max, etc.
Backport PR #54509 on branch 2.1.x (PERF: Dataframe reductions with EA dtypes) ExtensionArray Extending pandas with custom dtypes or arrays. Performance Memory or execution speed performance Reduction Operations sum, mean, min, max, etc.
REF: simplify extension reduction tests ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
BUG: melt with extension dtype column ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
ENH: EA.fillna copy=True ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
Use _values_for_factorize by default for hashing ExtensionArrays ExtensionArray Extending pandas with custom dtypes or arrays.
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