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Use oldest-supported-numpy in pyproject.toml

BuildLibrary building on various platformsLibrary building on various platforms

Status: Closed (completed).

#40307 In pandas-dev/pandas;

· by TomAugspurger was closed on Oct 13, 2021

PERF: groupby performance regression in 1.2.x

Groupby

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

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

Status: Closed (completed).

#41596 In pandas-dev/pandas;

· by tritemio was closed on Sep 23, 2021

BUG: timeseries.groupby(...).transform('mean') wrong when aggregating over pd.NaT

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

Bug

Groupby

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

Status: Closed (completed).

#43132 In pandas-dev/pandas;

· by behrenhoff was closed on Sep 18, 2021

BUG: groupby aggregation methods produce empty DataFrame with mixed DataTypes

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

Bug

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

Groupby

MultiIndex

Reduction Operationssum, mean, min, max, etc.sum, mean, min, max, etc.

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

Status: Closed (completed).

#43209 In pandas-dev/pandas;

· by johanneselbs was closed on Sep 29, 2021

BUG: <code>reorder_categories</code> with <code>inplace=True</code> is not changing the <code>dtype.categories</code>

Bug

CategoricalCategorical Data TypeCategorical Data Type

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

Status: Closed (completed).

#43232 In pandas-dev/pandas;

· by galipremsagar was closed on Sep 17, 2021

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

Bug

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: Closed (completed).

#43183 In pandas-dev/pandas;

· by nwilliams-lw was closed on Oct 17, 2021

BUG: crash in df.groupby.rolling.mean with forward window indexer

Bug

Groupby

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

SegfaultNon-Recoverable ErrorNon-Recoverable Error

Windowrolling, ewma, expandingrolling, ewma, expanding

Status: Closed (completed).

#43267 In pandas-dev/pandas;

· by mIgLLL was closed on Oct 16, 2021

BUG: REGR: read_csv with memory_map=True raises UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc4 in position 262143: unexpected end of data

Bug

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: Closed (completed).

#43540 In pandas-dev/pandas;

· by michal-gh was closed on Sep 21, 2021

BUG: Spearman correlation is broken (dtype mismatch) on 32-bit platforms

32bit32-bit systems32-bit systems

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

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: Closed (completed).

#43588 In pandas-dev/pandas;

· by musicinmybrain was closed on Sep 16, 2021

PERF: MultiIndex equals method got 20x slower

MultiIndex

PerformanceMemory or execution speed performanceMemory or execution speed performance

Status: Closed (completed).

#43549 In pandas-dev/pandas;

· by grotmol was closed on Sep 16, 2021

REGR: outer join with integer key and NaNs failing

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: Closed (completed).

#43550 In pandas-dev/pandas;

· by jorisvandenbossche was closed on Sep 14, 2021

BUG: skiplist memory leak in rolling functions

PerformanceMemory or execution speed performanceMemory or execution speed performance

Windowrolling, ewma, expandingrolling, ewma, expanding

Status: Closed (completed).

#43339 In pandas-dev/pandas;

· by gsiano was closed on Oct 16, 2021

RLS: 1.3.4

Release

Status: Closed (completed).

#43531 In pandas-dev/pandas;

· by simonjayhawkins was closed on Oct 18, 2021

BUG: passing kwargs to Series.aggregate raises TypeError: f() got an unexpected keyword argument

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

SeriesSeries data structureSeries data structure

Status: Closed (completed).

#43357 In pandas-dev/pandas;

· by jakeanq was closed on Sep 23, 2021

BUG: 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: Closed (completed).

#43386 In pandas-dev/pandas;

· by grantgustafson was closed on Oct 3, 2021

DOC: No links to prior versions docs

Docs

Status: Closed (completed).

#43782 In pandas-dev/pandas;

· by DrGFreeman was closed on Sep 28, 2021

BUG: <code>DataFrame.explode</code> is failing on scalar <code>int</code> value.

Bug

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: Closed (completed).

#43314 In pandas-dev/pandas;

· by galipremsagar was closed on Sep 30, 2021

BUG: pd.Categorical turns all values into NaN

Bug

CategoricalCategorical Data TypeCategorical Data Type

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

Status: Closed (completed).

#43334 In pandas-dev/pandas;

· by mfstabile was closed on Sep 17, 2021

BUG: pandas doesn't install on python 3.10

BuildLibrary building on various platformsLibrary building on various platforms

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

Python 3.10

Status: Closed (completed).

#43715 In pandas-dev/pandas;

· by eyalk11 was closed on Oct 17, 2021

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