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[READY] perf improvements for strftime

DatetimeDatetime data dtypeDatetime data dtype

PerformanceMemory or execution speed performanceMemory or execution speed performance

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 51298

#51298 In pandas-dev/pandas;

· by smarie was closed on Oct 5, 2025

· Updated on Oct 5, 2025

PDEP-13: The pandas Logical Type System

PDEPpandas enhancement proposalpandas enhancement proposal

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 58455

#58455 In pandas-dev/pandas;

· by WillAyd was closed on Apr 21, 2025

· Updated on Jun 26, 2025

Enable many complex number tests

ComplexComplex NumbersComplex Numbers

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 54761

#54761 In pandas-dev/pandas;

· by MichaelTiemannOSC was closed on Oct 29, 2024

· Updated on Oct 29, 2024

PDEP-13: Deprecate the apply method on Series and DataFrame and make the agg and transform methods operate on series data

PDEPpandas enhancement proposalpandas enhancement proposal

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 54747

#54747 In pandas-dev/pandas;

· by topper-123 was closed on Apr 23, 2024

· Updated on Apr 23, 2024

PDEP-1 Revision (Decision Making)

PDEPpandas enhancement proposalpandas enhancement proposal

Stale

Status: Merged (completed).

pandas-dev/pandasnumber 53576

#53576 In pandas-dev/pandas;

· by noatamir was closed on Apr 1, 2024

· Updated on Apr 1, 2024

BUG fixing module first() and DateOffset

FrequencyDateOffsetsDateOffsets

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 52487

#52487 In pandas-dev/pandas;

· by DeaMariaLeon was closed on Jun 2, 2023

· Updated on Jun 28, 2023

· 

2.1

ENH: Add calamite engine to <code>read_excel</code>

DependenciesRequired and optional dependenciesRequired and optional dependencies

Enhancement

IO Excelread_excel, to_excelread_excel, to_excel

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 50581

#50581 In pandas-dev/pandas;

· by kostyafarber was closed on May 15, 2023

· Updated on May 15, 2023

BUG: Bug in loc did not change dtype when complete column was assigned

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

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

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 37749

#37749 In pandas-dev/pandas;

· by phofl was closed on Jun 16, 2021

· Updated on Apr 27, 2023

REGR: be able to read Stata files without reading them fully into memory

IO Stataread_stata, to_stataread_stata, to_stata

PerformanceMemory or execution speed performanceMemory or execution speed performance

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 48922

#48922 In pandas-dev/pandas;

· by akx was closed on Dec 17, 2022

· Updated on Dec 17, 2022

PERF: Slow performance of to_dict (#46470)

IO DataIO issues that don't fit into a more specific labelIO issues that don't fit into a more specific label

PerformanceMemory or execution speed performanceMemory or execution speed performance

Stale

Status: Merged (completed).

pandas-dev/pandasnumber 46487

#46487 In pandas-dev/pandas;

· by RogerThomas was closed on Nov 22, 2022

· Updated on Nov 23, 2022

· 

2.0

Add more overflow tests for timedelta64 operations

Stale

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

TimedeltaTimedelta data typeTimedelta data type

Status: Closed (abandoned).

pandas-dev/pandasnumber 46854

#46854 In pandas-dev/pandas;

· by patrickmckenna was closed on Aug 15, 2022

· Updated on Aug 15, 2022

· 

1.5

Add 'color' and 'size' to arguments

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

Stale

Visualizationplottingplotting

Status: Merged (completed).

pandas-dev/pandasnumber 44856

#44856 In pandas-dev/pandas;

· by mosc9575 was closed on Apr 7, 2022

· Updated on Apr 7, 2022

· 

1.5