Search results

BUG: Inconsistent .values NA/NaN

PDEP missing valuesIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprintIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint

Status: Open.

#61856 In pandas-dev/pandas;

· jbrockmendel opened on Jul 14, 2025

BUG: numpy_nullable NaNs do not round-trip through CSV

Bug

IO CSVread_csv, to_csvread_csv, to_csv

PDEP missing valuesIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprintIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint

Status: Open.

#61617 In pandas-dev/pandas;

· jbrockmendel opened on Jun 9, 2025

BUG: setting tuple key on Series with flat Index

Bug

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

SeriesSeries data structureSeries data structure

Status: Open.

#55141 In pandas-dev/pandas;

· jbrockmendel opened on Sep 14, 2023

API: auto-detect when to use numba

API Design

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

numbanumba-accelerated operationsnumba-accelerated operations

PerformanceMemory or execution speed performanceMemory or execution speed performance

Status: Open.

#53239 In pandas-dev/pandas;

· jbrockmendel opened on May 15, 2023

DEPR: NDFrame.drop index/columns

API - ConsistencyInternal Consistency of API/BehaviorInternal Consistency of API/Behavior

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

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

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Open.

#52467 In pandas-dev/pandas;

· jbrockmendel opened on Apr 5, 2023

BUG: find_common_type incorrect for Categorical with NaNs

CategoricalCategorical Data TypeCategorical Data Type

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

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

PDEP missing valuesIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprintIssues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint

Status: Open.

#38240 In pandas-dev/pandas;

· jbrockmendel opened on Dec 2, 2020

REF: NumericIndex.union determine casting dtype using concat logic

API - ConsistencyInternal Consistency of API/BehaviorInternal Consistency of API/Behavior

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

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

RefactorInternal refactoring of codeInternal refactoring of code

setopsunion, intersection, difference, symmetric_differenceunion, intersection, difference, symmetric_difference

Status: Open.

#37258 In pandas-dev/pandas;

· jbrockmendel opened on Oct 19, 2020

API Consistency: validations on no-ops

API - ConsistencyInternal Consistency of API/BehaviorInternal Consistency of API/Behavior

Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolatenp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate

Status: Open.

#36466 In pandas-dev/pandas;

· jbrockmendel opened on Sep 19, 2020

ENH: allow EA to register types for is_scalar

Enhancement

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

Status: Open.

#27462 In pandas-dev/pandas;

· jbrockmendel opened on Jul 19, 2019