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BUG: preserve object-dtype index when accessing DataFrame column / PERF: improve perf of Series fastpath constructor

ConstructorsSeries/DataFrame/Index/pd.array ConstructorsSeries/DataFrame/Index/pd.array Constructors

PerformanceMemory or execution speed performanceMemory or execution speed performance

Status: Merged (completed).

pandas-dev/pandasnumber 42950

#42950 In pandas-dev/pandas;

· by jorisvandenbossche was closed on Jan 24, 2022

ENH: Add custom descriptors (such as dtype, nunique, etc.) to Styler output

Enhancement

Stylerconditional formatting using DataFrame.styleconditional formatting using DataFrame.style

Status: Closed (abandoned).

pandas-dev/pandasnumber 43894

#43894 In pandas-dev/pandas;

· by attack68 was closed on Feb 25, 2022

Initial draft: from_dummies

CategoricalCategorical Data TypeCategorical Data Type

Enhancement

Status: Merged (completed).

pandas-dev/pandasnumber 41902

#41902 In pandas-dev/pandas;

· by pckSF was closed on Jun 30, 2022

PERF: improve efficiency of <code>BaseMaskedArray.__setitem__</code>

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

PerformanceMemory or execution speed performanceMemory or execution speed performance

Status: Closed (abandoned).

pandas-dev/pandasnumber 44186

#44186 In pandas-dev/pandas;

· by alexreg was closed on Jan 17, 2022

ENH: Implement multi-column <code>DataFrame.quantiles</code>

Enhancement

Status: Merged (completed).

pandas-dev/pandasnumber 44301

#44301 In pandas-dev/pandas;

· by charlesbluca was closed on Aug 17, 2022

ENH: add support for reading .tar archives

Enhancement

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

Status: Merged (completed).

pandas-dev/pandasnumber 44787

#44787 In pandas-dev/pandas;

· by Skn0tt was closed on May 7, 2022

ENH: reset_index on a MultiIndex with duplicate levels raises a ValueError

MultiIndex

Status: Merged (completed).

pandas-dev/pandasnumber 44755

#44755 In pandas-dev/pandas;

· by johnzangwill was closed on Jan 30, 2022

BUG: ArrayManager not respecting copy keyword

Status: Merged (completed).

pandas-dev/pandasnumber 44889

#44889 In pandas-dev/pandas;

· by jbrockmendel was closed on Jan 14, 2022

DEPR: non-keyword arguments in any

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

Status: Merged (completed).

pandas-dev/pandasnumber 44896

#44896 In pandas-dev/pandas;

· by yadav-sachin was closed on Apr 10, 2022

Groupby Agg not working if different partials with same name on the same column

Groupby

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

Status: Closed (abandoned).

pandas-dev/pandasnumber 45075

#45075 In pandas-dev/pandas;

· by aliraeisdanaei was closed on Mar 6, 2022

BUG: Series(floatlike, dtype=intlike) inconsistent with non-ndarray data

Bug

ConstructorsSeries/DataFrame/Index/pd.array ConstructorsSeries/DataFrame/Index/pd.array Constructors

Status: Merged (completed).

pandas-dev/pandasnumber 45142

#45142 In pandas-dev/pandas;

· by jbrockmendel was closed on Jan 10, 2022

BUG: Fix for xlabel/ylabel in barh plot

Bug

Visualizationplottingplotting

Status: Merged (completed).

pandas-dev/pandasnumber 45145

#45145 In pandas-dev/pandas;

· by stefmolin was closed on Jan 16, 2022

TYP: Add type definition for generators in excel.py

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

Status: Merged (completed).

pandas-dev/pandasnumber 45139

#45139 In pandas-dev/pandas;

· by kashifkhan was closed on Jan 10, 2022

STYLE add vulture hook

Code StyleCode style, linting, code_checksCode style, linting, code_checks

Status: Merged (completed).

pandas-dev/pandasnumber 45173

#45173 In pandas-dev/pandas;

· by MarcoGorelli was closed on Jan 5, 2022

BUG: fix .loc.__setitem__ not raising when using too many indexers

Bug

Error ReportingIncorrect or improved errors from pandasIncorrect or improved errors from pandas

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 44656

#44656 In pandas-dev/pandas;

· by DriesSchaumont was closed on Jan 30, 2022

TYP: interval.pyi

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

Status: Closed (abandoned).

pandas-dev/pandasnumber 44922

#44922 In pandas-dev/pandas;

· by twoertwein was closed on Feb 23, 2022

API: Allow other na values in StringArray Constructor

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

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

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

Status: Merged (completed).

pandas-dev/pandasnumber 45168

#45168 In pandas-dev/pandas;

· by lithomas1 was closed on Jan 17, 2022

Typ parts of python parser

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

Status: Merged (completed).

pandas-dev/pandasnumber 45015

#45015 In pandas-dev/pandas;

· by phofl was closed on Feb 6, 2022

PERF: avoid copies in lib.infer_dtype

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

PerformanceMemory or execution speed performanceMemory or execution speed performance

Status: Merged (completed).

pandas-dev/pandasnumber 45057

#45057 In pandas-dev/pandas;

· by jbrockmendel was closed on Jan 17, 2022

ENH: Index[bool]

Enhancement

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

Status: Merged (completed).

pandas-dev/pandasnumber 45061

#45061 In pandas-dev/pandas;

· by jbrockmendel was closed on Feb 5, 2022

DEPR: special-casing PeriodDtype in Series.where/Series/mask fallback

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

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

Status: Closed (abandoned).

pandas-dev/pandasnumber 45148

#45148 In pandas-dev/pandas;

· by jbrockmendel was closed on Jan 22, 2022

BUG: DataFrameGroupBy.value_counts() fails if as_index=False and there are duplicate column labels

Groupby

Status: Merged (completed).

pandas-dev/pandasnumber 45160

#45160 In pandas-dev/pandas;

· by johnzangwill was closed on Jan 17, 2022

BUG: clip raising with na series bounds for datetimes or ea int

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

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 45161

#45161 In pandas-dev/pandas;

· by phofl was closed on Jun 10, 2022

ENH: <code>Styler.to_string</code>

Enhancement

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

Stylerconditional formatting using DataFrame.styleconditional formatting using DataFrame.style

Status: Merged (completed).

pandas-dev/pandasnumber 44502

#44502 In pandas-dev/pandas;

· by attack68 was closed on Jan 8, 2022

[EHN] pandas.DataFrame.to_orc

Arrowpyarrow functionalitypyarrow functionality

Enhancement

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

Status: Merged (completed).

pandas-dev/pandasnumber 44554

#44554 In pandas-dev/pandas;

· by iajoiner was closed on Jun 14, 2022