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SparseArray is an ExtensionArray

API Design

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

SparseSparse Data TypeSparse Data Type

Status: Merged (completed).

pandas-dev/pandasnumber 22325

#22325 In pandas-dev/pandas;

· by TomAugspurger was closed on Oct 13, 2018

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0.24.0

ENH: Support ExtensionArray operators via a mixin

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Status: Merged (completed).

pandas-dev/pandasnumber 21261

#21261 In pandas-dev/pandas;

· by Dr-Irv was closed on Jun 29, 2018

·  

0.24.0

ENH: Basis for a StringDtype using Arrow

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

StringsString extension data type and string dataString extension data type and string data

Status: Merged (completed).

pandas-dev/pandasnumber 35259

#35259 In pandas-dev/pandas;

· by xhochy was closed on Nov 20, 2020

·  

1.2

API: Add string extension type

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

StringsString extension data type and string dataString extension data type and string data

Status: Merged (completed).

pandas-dev/pandasnumber 27949

#27949 In pandas-dev/pandas;

· by TomAugspurger was closed on Oct 5, 2019

·  

1.0.0

ENH: allow storing ExtensionArrays in Index

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

IndexRelated to the Index class or subclassesRelated to the Index class or subclasses

Status: Merged (completed).

pandas-dev/pandasnumber 43930

#43930 In pandas-dev/pandas;

· by jbrockmendel was closed on Dec 31, 2021

·  

1.4

ENH: Sorting of ExtensionArrays

AlgosNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diffNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Status: Merged (completed).

pandas-dev/pandasnumber 19957

#19957 In pandas-dev/pandas;

· by TomAugspurger was closed on Mar 22, 2018

·  

0.23.0

API: generalized check_array_indexer for validating array-like getitem indexers

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

IndexingRelated to indexing on series/frames, not to indexes themselvesRelated to indexing on series/frames, not to indexes themselves

Status: Merged (completed).

pandas-dev/pandasnumber 31150

#31150 In pandas-dev/pandas;

· by jorisvandenbossche was closed on Jan 29, 2020

·  

1.0.0

ENH/API: ExtensionArray.factorize

AlgosNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diffNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff

API Design

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Status: Merged (completed).

pandas-dev/pandasnumber 20361

#20361 In pandas-dev/pandas;

· by TomAugspurger was closed on Mar 27, 2018

·  

0.23.0

TYP: Fix typing in ExtensionDtype registry

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Typingtype annotations, mypy/pyright type checkingtype annotations, mypy/pyright type checking

Status: Merged (completed).

pandas-dev/pandasnumber 41203

#41203 In pandas-dev/pandas;

· by Dr-Irv was closed on Aug 3, 2021

·  

1.4

BUG: regression when applying groupby aggregation on categorical columns

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Groupby

Status: Merged (completed).

pandas-dev/pandasnumber 31359

#31359 In pandas-dev/pandas;

· by charlesdong1991 was closed on Jan 29, 2020

·  

1.0.0

BUG: TypeError when doing equality comparison with Extension Dtype

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Status: Closed (abandoned).

pandas-dev/pandasnumber 44618

#44618 In pandas-dev/pandas;

· by ata-turhan was closed on Dec 10, 2021