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Pull requests: pandas-dev/pandas
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POC: 2D EAs via composition Enhancement ExtensionArray Extending pandas with custom dtypes or arrays.
#27015 by jbrockmendel was closed Jul 1, 2019 Loading…
REF: remove special-casing for internal EAs from format_array ExtensionArray Extending pandas with custom dtypes or arrays. Output-Formatting __repr__ of pandas objects, to_string
#26965 by simonjayhawkins was closed Aug 28, 2019 Loading…
3 tasks
WIP/POC: Allow (N, 1) and (1,N) EAs Enhancement ExtensionArray Extending pandas with custom dtypes or arrays.
#26914 by jbrockmendel was closed Jul 1, 2019 Loading…
[ENH] nargsort handles EA with its _values_for_argsort ExtensionArray Extending pandas with custom dtypes or arrays.
TST: test custom _formatter for ExtensionArray + revert ExtensionArrayFormatter removal ExtensionArray Extending pandas with custom dtypes or arrays. Output-Formatting __repr__ of pandas objects, to_string
#26845 by jorisvandenbossche was merged Jun 14, 2019 Loading…
BUG: preserve categorical & sparse types when grouping / pivot & preserve dtypes on ufuncs Bug Categorical Categorical Data Type ExtensionArray Extending pandas with custom dtypes or arrays. Groupby Sparse Sparse Data Type
API: ExtensionArray.argsort places the missing value at the end API Design ExtensionArray Extending pandas with custom dtypes or arrays.
#26354 by makbigc was closed Jun 30, 2019 Loading…
[ENH] Use default EA repr for IntervalArray ExtensionArray Extending pandas with custom dtypes or arrays. Interval Interval data type
CLN: handle EAs and fast path (no bounds checking) in safe_sort Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: Cast ExtensionArray to numpy ndarray before plot ExtensionArray Extending pandas with custom dtypes or arrays. Visualization plotting
BUG: Redefine IndexOpsMixin.size, fix #25580. Bug ExtensionArray Extending pandas with custom dtypes or arrays.
EA: BoolArray Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays.
#25415 by jreback was closed Jun 27, 2019 Loading…
3 of 5 tasks
BUG: fixed merging with empty frame containing an Int64 column (#25183) Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
BUG: support casting from bool array to EA Integer dtype Bug ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
Fix #25099 set na_rep values before converting to string to prevent data truncation Bug ExtensionArray Extending pandas with custom dtypes or arrays. IO CSV read_csv, to_csv Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Output-Formatting __repr__ of pandas objects, to_string
implement+test mean for datetimelike EA/Index/Series Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Datetime Datetime data dtype ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
do freq validation in DTA.__init__ Datetime Datetime data dtype ExtensionArray Extending pandas with custom dtypes or arrays.
[WIP]: API ExtensionDtype for DTA & TDA Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays.
#24674 by TomAugspurger was closed Jul 29, 2019 Loading…
4 tasks
remove eadata ExtensionArray Extending pandas with custom dtypes or arrays. Internals Related to non-user accessible pandas implementation
Make _freq/freq/tz/_tz/dtype/_dtype/offset/_offset all inherit reliably Datetime Datetime data dtype ExtensionArray Extending pandas with custom dtypes or arrays.
Datetimelike __setitem__ Datetime Datetime data dtype ExtensionArray Extending pandas with custom dtypes or arrays.
REF: Stop mixing DTA/TDA into DTI/TDI Datetime Datetime data dtype ExtensionArray Extending pandas with custom dtypes or arrays.
searchsorted, repeat broken off from #24024 Datetime Datetime data dtype 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.
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ProTip! Updated in the last three days: updated:>2025-11-29.