8000 BUG: ensure reindex / getitem to select columns properly copies data for extension dtypes by jorisvandenbossche · Pull Request #51197 · pandas-dev/pandas · GitHub
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BUG: ensure reindex / getitem to select columns properly copies data for extension dtypes #51197

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jorisvandenbossche merged 6 commits into from
Feb 15, 2023
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BUG: ensure reindex / getitem to select columns properly copies data for extension dtypes #51197

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BUG: ensure getitem to select columns properly copies data for extens…
jorisvandenbossche Feb 6, 2023
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Merge remote-tracking branch 'upstream/main' into indexing-getitem-co…
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jorisvandenbossche committed Feb 10, 2023
commit 2ae2d1ec18a2a06df124462cc8cd54a6c2cf9156
1 change: 1 addition & 0 deletions doc/source/whatsnew/v2.0.0.rst
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Expand Up @@ -1370,6 +1370,7 @@ ExtensionArray
- Bug in :meth:`api.types.is_integer_dtype`, :meth:`api.types.is_unsigned_integer_dtype`, :meth:`api.types.is_signed_integer_dtype`, :meth:`api.types.is_float_dtype` where a custom :class:`ExtensionDtype` would not return ``True`` if ``kind`` returned the corresponding NumPy type (:issue:`50667`)
- Bug in :class:`Series` constructor unnecessarily overflowing for nullable unsigned integer dtypes (:issue:`38798`, :issue:`25880`)
- Bug in setting non-string value into ``StringArray`` raising ``ValueError`` instead of ``TypeError`` (:issue:`49632`)
- Bug in :meth:`DataFrame.reindex` not honoring the default ``copy=True`` keyword in case of columns with ExtensionDtype (and as a result also selecting multiple columns with getitem (``[]``) didn't correctly result in a copy) (:issue:`51197`)

Styler
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