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BUG: .describe() doesn't work for EAs

Bug

Describe/info

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

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

Status: Open.

#61707 In pandas-dev/pandas;

· andrewgsavage opened on Jun 25, 2025

ENH: support apply method for ExtensionArray backed DataFrame

ApplyApply, Aggregate, Transform, MapApply, Aggregate, Transform, Map

Enhancement

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

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

pyarrow dtype retentionop with pyarrow dtype -> expect pyarrow resultop with pyarrow dtype -> expect pyarrow result

Status: Open.

#54584 In pandas-dev/pandas;

· andrewgsavage opened on Aug 16, 2023

BUG: Series.round() expects ExtensionArray.round() to be implemented

Bug

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

ExtensionArray - New Method RequestSuggestion to add a new method to the EA base class/interface.Suggestion to add a new method to the EA base class/interface.

Status: Open.

#49387 In pandas-dev/pandas;

· andrewgsavage opened on Oct 29, 2022

BUG: Arithmetic operations on 0 length ExtensionArrays aren't tested

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

Numeric OperationsArithmetic, Comparison, and Logical operationsArithmetic, Comparison, and Logical operations

Testingpandas testing functions or related to the test suitepandas testing functions or related to the test suite

Status: Open.

#40624 In pandas-dev/pandas;

· andrewgsavage opened on Mar 25, 2021

BUG: ExtensionArray TestMethods.test_where_series (override is_scalar)

Bug

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

Status: Open.

#33825 In pandas-dev/pandas;

· andrewgsavage opened on Apr 27, 2020

Infer ExtensionDtype based on object

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

Enhancement

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

Status: Open.

#27995 In pandas-dev/pandas;

· andrewgsavage opened on Aug 18, 2019