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API: boolean ops with float dtype

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

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

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

Status: Open.

#61881 In pandas-dev/pandas;

· jbrockmendel opened on Jul 16, 2025

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

PERF: Brainstorming read_csv perf improvements

IO CSVread_csv, to_csvread_csv, to_csv

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

PerformanceMemory or execution speed performanceMemory or execution speed performance

Status: Open.

#61825 In pandas-dev/pandas;

· jbrockmendel opened on Jul 10, 2025

BUG: tz_localize(None) with Arrow timestamp

Arrowpyarrow functionalitypyarrow functionality

Bug

DatetimeDatetime data dtypeDatetime data dtype

TimezonesTimezone data dtypeTimezone data dtype

Status: Open.

#61780 In pandas-dev/pandas;

· jbrockmendel opened on Jul 4, 2025

BUG: Index[Float64].insert(1, False) casts False to 0

Bug

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

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

Status: Open.

#61709 In pandas-dev/pandas;

· jbrockmendel opened on Jun 26, 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

REF: make _cast_pointwise_result an EA method

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

RefactorInternal refactoring of codeInternal refactoring of code

Status: Open.

#59895 In pandas-dev/pandas;

· jbrockmendel opened on Sep 25, 2024

DEPR: future.no_silent_downcasting option

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

Status: Open.

#59502 In pandas-dev/pandas;

· jbrockmendel opened on Aug 13, 2024

REF/API: make construct_array_type a non-classmethod

Bug

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

Status: Open.

#58663 In pandas-dev/pandas;

· jbrockmendel opened on May 9, 2024

REF: simplify _constructor/_from_mgr/_constructor_from_mgr/...

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

RefactorInternal refactoring of codeInternal refactoring of code

SubclassingSubclassing pandas objectsSubclassing pandas objects

Status: Open.

#56681 In pandas-dev/pandas;

· jbrockmendel opened on Dec 29, 2023

BUG: dt64[non_nano] + some_offsets incorrectly rounding

Bug

FrequencyDateOffsetsDateOffsets

Non-Nanodatetime64/timedelta64 with non-nanosecond resolutiondatetime64/timedelta64 with non-nanosecond resolution

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

Status: Open.

#56586 In pandas-dev/pandas;

· jbrockmendel opened on Dec 21, 2023

DEPR: SparseDtype

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

SparseSparse Data TypeSparse Data Type

Status: Open.

#56518 In pandas-dev/pandas;

· jbrockmendel opened on Dec 15, 2023