List view

BUG: TypeError when shifting DataFrame created by concatenation of slices and fills with values

InternalsRelated to non-user accessible pandas implementationRelated to non-user accessible pandas implementation

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

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

Status: Merged (completed).

pandas-dev/pandasnumber 42453

#42453 In pandas-dev/pandas;

· by wjsi was closed on Jul 27, 2021

read_excel() modifies provided types dict when accessing file with duplicate column

Bug

IO Excelread_excel, to_excelread_excel, to_excel

Status: Merged (completed).

pandas-dev/pandasnumber 42508

#42508 In pandas-dev/pandas;

· by debnathshoham was closed on Aug 4, 2021

BUG: Incorrect variable window bounds for first row when offset cover all rows

Windowrolling, ewma, expandingrolling, ewma, expanding

Status: Merged (completed).

pandas-dev/pandasnumber 42776

#42776 In pandas-dev/pandas;

· by dicristina was closed on Aug 7, 2021

BUG: 1D slices over extension types turn into N-dimensional slices over ExtensionArrays

Bug

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

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 42787

#42787 In pandas-dev/pandas;

· by frreiss was closed on Jul 31, 2021

Backport PR #42762 on branch 1.3.x (REG: DataFrame.agg where func returns lists and axis=1)

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

Bug

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Merged (completed).

pandas-dev/pandasnumber 42786

#42786 In pandas-dev/pandas;

· by meeseeksmachine was closed on Jul 29, 2021

Backport PR #42714 on branch 1.3.x (PERF/REGR: isin slowdown for masked type)

isinisin methodisin method

NA - MaskedArraysRelated to pd.NA and nullable extension arraysRelated to pd.NA and nullable extension arrays

PerformanceMemory or execution speed performanceMemory or execution speed performance

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Merged (completed).

pandas-dev/pandasnumber 42726

#42726 In pandas-dev/pandas;

· by meeseeksmachine was closed on Jul 26, 2021

Backport PR #42687 on branch 1.3.x (DOC: Start v1.3.2 release notes)

Docs

Status: Merged (completed).

pandas-dev/pandasnumber 42707

#42707 In pandas-dev/pandas;

· by meeseeksmachine was closed on Jul 25, 2021

PERF/REGR: isin slowdown for masked type

isinisin methodisin method

NA - MaskedArraysRelated to pd.NA and nullable extension arraysRelated to pd.NA and nullable extension arrays

PerformanceMemory or execution speed performanceMemory or execution speed performance

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Merged (completed).

pandas-dev/pandasnumber 42714

#42714 In pandas-dev/pandas;

· by mzeitlin11 was closed on Jul 26, 2021

Pin xarray to get ci passing

CIContinuous IntegrationContinuous Integration

DependenciesRequired and optional dependenciesRequired and optional dependencies

Status: Merged (completed).

pandas-dev/pandasnumber 42715

#42715 In pandas-dev/pandas;

· by phofl was closed on Jul 26, 2021

Backport PR #42735 on branch 1.3.x (REGR: DataFrame.from_records with empty records #42456)

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

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Merged (completed).

pandas-dev/pandasnumber 42740

#42740 In pandas-dev/pandas;

· by meeseeksmachine was closed on Jul 27, 2021

REGR: nanosecond timestamp comparisons to OOB datetimes

DatetimeDatetime data dtypeDatetime data dtype

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

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Merged (completed).

pandas-dev/pandasnumber 42796

#42796 In pandas-dev/pandas;

· by mzeitlin11 was closed on Jul 29, 2021

Backport PR #42715 on branch 1.3.x (Pin xarray to get ci passing)

CIContinuous IntegrationContinuous Integration

DependenciesRequired and optional dependenciesRequired and optional dependencies

Status: Merged (completed).

pandas-dev/pandasnumber 42723

#42723 In pandas-dev/pandas;

· by meeseeksmachine was closed on Jul 26, 2021

CLN: clean the conda-to-pip script

Clean

Status: Merged (completed).

pandas-dev/pandasnumber 42720

#42720 In pandas-dev/pandas;

· by fangchenli was closed on Jul 26, 2021

Backport PR #42453 on branch 1.3.x (BUG: TypeError when shifting DataFrame created by concatenation of slices and fills with values)

InternalsRelated to non-user accessible pandas implementationRelated to non-user accessible pandas implementation

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

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

Status: Merged (completed).

pandas-dev/pandasnumber 42754

#42754 In pandas-dev/pandas;

· by meeseeksmachine was closed on Jul 27, 2021

BUG: <code>Styler.set_sticky</code> fix the names rows 2/2

Stylerconditional formatting using DataFrame.styleconditional formatting using DataFrame.style

Status: Merged (completed).

pandas-dev/pandasnumber 42799

#42799 In pandas-dev/pandas;

· by attack68 was closed on Aug 7, 2021

DataFrame.drop silently does nothing if MultiIndex has duplicates

MultiIndex

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Merged (completed).

pandas-dev/pandasnumber 42801

#42801 In pandas-dev/pandas;

· by phofl was closed on Jul 31, 2021

COMPAT: MPL 3.4.0

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

DependenciesRequired and optional dependenciesRequired and optional dependencies

Visualizationplottingplotting

Status: Merged (completed).

pandas-dev/pandasnumber 42803

#42803 In pandas-dev/pandas;

· by lithomas1 was closed on Jul 29, 2021

Backport PR #42803 on branch 1.3.x (COMPAT: MPL 3.4.0)

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

DependenciesRequired and optional dependenciesRequired and optional dependencies

Visualizationplottingplotting

Status: Merged (completed).

pandas-dev/pandasnumber 42807

#42807 In pandas-dev/pandas;

· by meeseeksmachine was closed on Jul 30, 2021

Backport PR #42796 on branch 1.3.x (REGR: nanosecond timestamp comparisons to OOB datetimes)

DatetimeDatetime data dtypeDatetime data dtype

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

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Merged (completed).

pandas-dev/pandasnumber 42806

#42806 In pandas-dev/pandas;

· by meeseeksmachine was closed on Jul 30, 2021

REGR: DataFrame.from_records with empty records #42456

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

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Merged (completed).

pandas-dev/pandasnumber 42735

#42735 In pandas-dev/pandas;

· by jbrockmendel was closed on Jul 26, 2021

DOC: move release note PR #42644

Docs

Status: Merged (completed).

pandas-dev/pandasnumber 42730

#42730 In pandas-dev/pandas;

· by simonjayhawkins was closed on Jul 26, 2021

Backport PR #42644: BUG: KeyError when a series popped from data frame with bool indexer

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 42728

#42728 In pandas-dev/pandas;

· by simonjayhawkins was closed on Jul 26, 2021

REG: DataFrame.agg where func returns lists and axis=1

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

Bug

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Merged (completed).

pandas-dev/pandasnumber 42762

#42762 In pandas-dev/pandas;

· by rhshadrach was closed on Jul 28, 2021

Backport PR #42690 on branch 1.3.x (REGR: ValueError raised when both prefix and names are set to None)

IO CSVread_csv, to_csvread_csv, to_csv

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Merged (completed).

pandas-dev/pandasnumber 42811

#42811 In pandas-dev/pandas;

· by meeseeksmachine was closed on Jul 30, 2021

Backport PR #42936 on branch 1.3.x (BUG:Can't calculate quantiles from Int64Dtype Series when results are floats)

AlgosNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diffNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff

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

Status: Merged (completed).

pandas-dev/pandasnumber 42974

#42974 In pandas-dev/pandas;

· by meeseeksmachine was closed on Aug 10, 2021