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Pull requests: pandas-dev/pandas
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REF: Make PeriodArray an ExtensionArray ExtensionArray Extending pandas with custom dtypes or arrays. Period Period data type
SparseArray is an ExtensionArray API Design ExtensionArray Extending pandas with custom dtypes or arrays. Sparse Sparse Data Type
ENH: Support ExtensionArray operators via a mixin ExtensionArray Extending pandas with custom dtypes or arrays.
ENH: Basis for a StringDtype using Arrow ExtensionArray Extending pandas with custom dtypes or arrays. Strings String extension data type and string data
API: Add string extension type Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays. Strings String extension data type and string data
TST: restructure internal extension arrays tests (split between /arrays and /extension) ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
DF.__setitem__ creates extension column when given extension scalar Bug ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves
ENH:Add EA types to read CSV ExtensionArray Extending pandas with custom dtypes or arrays. IO CSV read_csv, to_csv
ExtensionArray.take default implementation ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves
ENH: allow storing ExtensionArrays in Index ExtensionArray Extending pandas with custom dtypes or arrays. Index Related to the Index class or subclasses
ENH: Implement Kleene logic for BooleanArray ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
ENH: add groupby & reduce support to EA ExtensionArray Extending pandas with custom dtypes or arrays. Numeric Operations Arithmetic, Comparison, and Logical operations
ENH: Add argmax and argmin to ExtensionArray ExtensionArray Extending pandas with custom dtypes or arrays.
ENH: implement DatetimeLikeArray Enhancement ExtensionArray Extending pandas with custom dtypes or arrays. Internals Related to non-user accessible pandas implementation
BUG: Series.combine() fails with ExtensionArray inside of Series Bug ExtensionArray Extending pandas with custom dtypes or arrays.
fix series.isin slow issue with Dtype IntegerArray 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
ENH: Sorting of ExtensionArrays Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff ExtensionArray Extending pandas with custom dtypes or arrays.
implement astype portion of #24024 Clean Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays.
ENH: allow JSON (de)serialization of ExtensionDtypes Enhancement ExtensionArray Extending pandas with custom dtypes or arrays. IO JSON read_json, to_json, json_normalize
TYP: Typing for ExtensionArray.__getitem__ ExtensionArray Extending pandas with custom dtypes or arrays. Typing type annotations, mypy/pyright type checking
API: generalized check_array_indexer for validating array-like getitem indexers ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves
API: consistent __array__ for datetime-like ExtensionArrays ExtensionArray Extending pandas with custom dtypes or arrays.
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