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Pull requests: pandas-dev/pandas
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REF: Changed ExtensionDtype inheritance Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: Handle all-NA blocks in concat ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Reshaping Concat, Merge/Join, Stack/Unstack, Explode
ENH: Sorting of ExtensionArrays Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff ExtensionArray Extending pandas with custom dtypes or arrays.
ENH/API: ExtensionArray.factorize Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff API Design ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: Allow overwriting object columns with EAs Bug ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: Series[EA].astype(str) works Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: Fixed Series.align(frame) with ExtensionArray ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Reshaping Concat, Merge/Join, Stack/Unstack, Explode
TST: remove skip for values/index length mismatch in ExtensionArray tests ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
ENH: ExtensionArray.setitem ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves
TST: add tests for take() on empty arrays Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff ExtensionArray Extending pandas with custom dtypes or arrays.
Fix pd.merge to preserve ExtensionArrays dtypes ExtensionArray Extending pandas with custom dtypes or arrays.
EA.values warning test ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
TST: correct constructor in extension array tests ExtensionArray Extending pandas with custom dtypes or arrays.
DOC/API: expose ExtensionArray in public api Docs ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: Coerce to object for mixed concat ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
TST: ExtensionArrays disallow .values attribute ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: concat of Series of EA and other dtype fails Bug ExtensionArray Extending pandas with custom dtypes or arrays.
ENH: Support ExtensionArray in Groupby ExtensionArray Extending pandas with custom dtypes or arrays. Groupby
BUG: ExtensionArray.fillna for scalar values ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
TST: Remove invalid dtype test ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
ENH: ExtensionArray.fillna ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
API: Added ExtensionArray constructors API Design ExtensionArray Extending pandas with custom dtypes or arrays.
DOC: add doc on ExtensionArray and extending pandas Docs ExtensionArray Extending pandas with custom dtypes or arrays.
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