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BUG: convert_dtypes incorrectly converts byte strings to strings in 1.3+

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

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

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

Status: Merged (completed).

pandas-dev/pandasnumber 43199

#43199 In pandas-dev/pandas;

· by shubham11941140 was closed on Oct 17, 2021

BUG: groupby agg fails silently with mixed dtypes

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

Groupby

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 43213

#43213 In pandas-dev/pandas;

· by debnathshoham was closed on Sep 29, 2021

DOC: Start v1.3.4 release notes

Docs

Status: Merged (completed).

pandas-dev/pandasnumber 43530

#43530 In pandas-dev/pandas;

· by simonjayhawkins was closed on Sep 12, 2021

Backport PR #43530 on branch 1.3.x (DOC: Start v1.3.4 release notes)

Docs

Status: Merged (completed).

pandas-dev/pandasnumber 43532

#43532 In pandas-dev/pandas;

· by meeseeksmachine was closed on Sep 12, 2021

Backport PR #43517 on branch 1.3.x (split macos tests in 2)

CIContinuous IntegrationContinuous Integration

Status: Merged (completed).

pandas-dev/pandasnumber 43535

#43535 In pandas-dev/pandas;

· by Dr-Irv was closed on Sep 13, 2021

Backport PR #44012 on branch 1.3.x (DOC: minor fixup of 1.3.4 release notes)

Docs

Status: Merged (completed).

pandas-dev/pandasnumber 44016

#44016 In pandas-dev/pandas;

· by meeseeksmachine was closed on Oct 13, 2021

DOC: minor fixup of 1.3.4 release notes

Docs

Status: Merged (completed).

pandas-dev/pandasnumber 44012

#44012 In pandas-dev/pandas;

· by simonjayhawkins was closed on Oct 13, 2021

Backport PR #43910 on branch 1.3.x (TST: Skip leaky test on Python 3.10)

Python 3.10

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

Status: Merged (completed).

pandas-dev/pandasnumber 43936

#43936 In pandas-dev/pandas;

· by meeseeksmachine was closed on Oct 9, 2021

[PERF] fixing memory leak in aggregation.pyx

PerformanceMemory or execution speed performanceMemory or execution speed performance

Windowrolling, ewma, expandingrolling, ewma, expanding

Status: Merged (completed).

pandas-dev/pandasnumber 44032

#44032 In pandas-dev/pandas;

· by realead was closed on Oct 16, 2021

Backport PR #43729: DEPS: Upgrade Deps for Python 3.10

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

DependenciesRequired and optional dependenciesRequired and optional dependencies

Python 3.10

Status: Merged (completed).

pandas-dev/pandasnumber 44036

#44036 In pandas-dev/pandas;

· by lithomas1 was closed on Oct 15, 2021

Backport PR #43772: CI: Test Python 3.10 on MacOS and Windows too

CIContinuous IntegrationContinuous Integration

OS XRelated to Mac OS & hardware issues (M1)Related to Mac OS & hardware issues (M1)

WindowsWindows OSWindows OS

Status: Merged (completed).

pandas-dev/pandasnumber 43935

#43935 In pandas-dev/pandas;

· by lithomas1 was closed on Oct 9, 2021

TST: Skip leaky test on Python 3.10

Python 3.10

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

Status: Merged (completed).

pandas-dev/pandasnumber 43910

#43910 In pandas-dev/pandas;

· by lithomas1 was closed on Oct 9, 2021

TYP: Fix typing of frame.explode

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

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

Status: Merged (completed).

pandas-dev/pandasnumber 43834

#43834 In pandas-dev/pandas;

· by phofl was closed on Oct 1, 2021

Backport PR #43834 on branch 1.3.x (TYP: Fix typing of frame.explode)

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

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

Status: Merged (completed).

pandas-dev/pandasnumber 43841

#43841 In pandas-dev/pandas;

· by meeseeksmachine was closed on Oct 1, 2021

REGR: RollingGroupby.corr producing incorrect results

Bug

Groupby

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

Windowrolling, ewma, expandingrolling, ewma, expanding

Status: Merged (completed).

pandas-dev/pandasnumber 43854

#43854 In pandas-dev/pandas;

· by rhshadrach was closed on Oct 3, 2021

Backport PR #43854 on branch 1.3.x (REGR: RollingGroupby.corr producing incorrect results)

Bug

Groupby

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

Windowrolling, ewma, expandingrolling, ewma, expanding

Status: Merged (completed).

pandas-dev/pandasnumber 43859

#43859 In pandas-dev/pandas;

· by meeseeksmachine was closed on Oct 3, 2021

Backport PR #43809 on branch 1.3.x (DOC: Add link to previous versions documentation)

Docs

Status: Merged (completed).

pandas-dev/pandasnumber 43816

#43816 In pandas-dev/pandas;

· by meeseeksmachine was closed on Sep 30, 2021

Backport PR #43802 on branch 1.3.x (REG: Regression in explode when column is non string)

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 43817

#43817 In pandas-dev/pandas;

· by meeseeksmachine was closed on Sep 30, 2021

Backport PR #43801 on branch 1.3.x (DOC: Add cross merge to userguide section)

Docs

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

Status: Merged (completed).

pandas-dev/pandasnumber 43818

#43818 In pandas-dev/pandas;

· by meeseeksmachine was closed on Sep 30, 2021

Backport PR #43553 on branch 1.3.x (REGR: Outer merge failing with integer and NaN keys)

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

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

Status: Merged (completed).

pandas-dev/pandasnumber 43566

#43566 In pandas-dev/pandas;

· by meeseeksmachine was closed on Sep 14, 2021

REGR: Outer merge failing with integer and NaN keys

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

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

Status: Merged (completed).

pandas-dev/pandasnumber 43553

#43553 In pandas-dev/pandas;

· by debnathshoham was closed on Sep 14, 2021

split macos tests in 2

CIContinuous IntegrationContinuous Integration

OS XRelated to Mac OS & hardware issues (M1)Related to Mac OS & hardware issues (M1)

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

Status: Merged (completed).

pandas-dev/pandasnumber 43517

#43517 In pandas-dev/pandas;

· by Dr-Irv was closed on Sep 12, 2021

CI: Test Python 3.10 on MacOS and Windows too

CIContinuous IntegrationContinuous Integration

OS XRelated to Mac OS & hardware issues (M1)Related to Mac OS & hardware issues (M1)

WindowsWindows OSWindows OS

Status: Merged (completed).

pandas-dev/pandasnumber 43772

#43772 In pandas-dev/pandas;

· by lithomas1 was closed on Oct 6, 2021

REG: Regression in explode when column is non string

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 43802

#43802 In pandas-dev/pandas;

· by phofl was closed on Sep 30, 2021

DOC: Add cross merge to userguide section

Docs

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

Status: Merged (completed).

pandas-dev/pandasnumber 43801

#43801 In pandas-dev/pandas;

· by phofl was closed on Sep 30, 2021