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Pull requests: pandas-dev/pandas
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BUG: Fixed concat with reindex and extension types ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
TST: IntegerNA Support for DataFrame.diff() Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode Testing pandas testing functions or related to the test suite
API: more permissive conversion to StringDtype ExtensionArray Extending pandas with custom dtypes or arrays. Strings String extension data type and string data
ENH: Add na_value argument to DataFrame.to_numpy Enhancement ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
TST: Add Series.update ExtensionArray tests ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
BUG: Create empty dataframe with string dtype fails Bug Constructors Series/DataFrame/Index/pd.array Constructors ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: Don't cast nullable Boolean to float in groupby Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays. Groupby Regression Functionality that used to work in a prior pandas version
BUG: fix memory_usage method with deep of StringArray Bug ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: Series construction with EA dtype and index but no data fails Bug Constructors Series/DataFrame/Index/pd.array Constructors ExtensionArray Extending pandas with custom dtypes or arrays.
ENH: general concat with ExtensionArrays through find_common_type API Design Enhancement ExtensionArray Extending pandas with custom dtypes or arrays.
[#33770] bug fix to prevent ExtensionArrays from crashing Series.__repr__() Bug ExtensionArray Extending pandas with custom dtypes or arrays. Output-Formatting __repr__ of pandas objects, to_string
TST: ensure groupby get by index value #33439 ExtensionArray Extending pandas with custom dtypes or arrays. Groupby Testing pandas testing functions or related to the test suite
REF: Implement NDArrayBackedExtensionArray ExtensionArray Extending pandas with custom dtypes or arrays.
ENH: Implement IntegerArray.sum ExtensionArray Extending pandas with custom dtypes or arrays. Numeric Operations Arithmetic, Comparison, and Logical operations
ENH: Implement StringArray.min / max Enhancement ExtensionArray Extending pandas with custom dtypes or arrays. Strings String extension data type and string data
BUG: Fix replacing in Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
string series with NA (pandas-dev#32621) Bug ExtensionArray implement astype portion of #24024 Clean Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays.
Fix and test scalar extension dtype op corner case Bug ExtensionArray Extending pandas with custom dtypes or arrays.
CLN: Split integer array tests ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
CLN: use _values_for_argsort for join_non_unique, join_monotonic Clean ExtensionArray Extending pandas with custom dtypes or arrays.
Implement __array__ on ExtensionIndex ExtensionArray Extending pandas with custom dtypes or arrays. Index Related to the Index class or subclasses
BUG: preserve EA dtype in transpose ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
TST: expand tests for ExtensionArray setitem with nullable arrays ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves Testing pandas testing functions or related to the test suite
REF: implement ExtensionIndex._concat_same_dtype, use for IntervalIndex ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
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