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Pull requests: pandas-dev/pandas
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REF: share code for set-like ops in DTI/TDI/PI ExtensionArray Extending pandas with custom dtypes or arrays. Refactor Internal refactoring of code
BUG: Series/Frame invert dtypes ExtensionArray Extending pandas with custom dtypes or arrays. Numeric Operations Arithmetic, Comparison, and Logical operations
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
REGR: Prevent indexes that aren't directly backed by numpy from entering libreduction code paths ExtensionArray Extending pandas with custom dtypes or arrays. Groupby Regression Functionality that used to work in a prior pandas version
REF: avoid calling engine for EA values ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves
ENH: Implement _from_sequence_of_strings for BooleanArray ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
CLN: update _simple_new usages Clean Constructors Series/DataFrame/Index/pd.array Constructors ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: Preserve string dtype in extract ExtensionArray Extending pandas with custom dtypes or arrays. Strings String extension data type and string data
BUG: Handle nested arrays in array_equivalent_object ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
ENH: add and register Arrow extension types for Period and Interval ExtensionArray Extending pandas with custom dtypes or arrays. Interval Interval data type Period Period data type
IntegerArray.to_numpy API - Consistency Internal Consistency of API/Behavior ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
ENH: add ExtensionArray.to_numpy to have control over conversion to numpy array ExtensionArray Extending pandas with custom dtypes or arrays.
Implement NA.__array_ufunc__ ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Numeric Operations Arithmetic, Comparison, and Logical operations
BUG: listlike comparisons for DTA and TDA ExtensionArray Extending pandas with custom dtypes or arrays.
TST: Adding test to concat where copy=False for ExtensionArrays ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
REF: move EA wrapping/unwrapping to indexes.extensions ExtensionArray Extending pandas with custom dtypes or arrays. Index Related to the Index class or subclasses
REF: implement indexes.extension to share delegation ExtensionArray Extending pandas with custom dtypes or arrays. Index Related to the Index class or subclasses
BUG: pass 2D ndarray and EA-dtype to DataFrame, closes #12513 Bug Constructors Series/DataFrame/Index/pd.array Constructors ExtensionArray Extending pandas with custom dtypes or arrays.
API: Uses pd.NA in IntegerArray API Design Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays.
API: Return BoolArray for string ops when backed by StringArray API Design Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
BUG/TST: fix arrow roundtrip / parquet tests for recent pyarrow Bug ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
TST: add test for Series.item backed with ExtensionArray ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
BUG: DataFrame constructor raised ValueError with list-like data and … Constructors Series/DataFrame/Index/pd.array Constructors ExtensionArray Extending pandas with custom dtypes or arrays.
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