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BUG: AssertionError: <class 'pandas.core.arrays.datetimes.DatetimeArray'> on concat

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

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).

#40841 In pandas-dev/pandas;

· by nathanielatom was closed on Apr 14, 2021

BUG: read_csv is failing with an encoding different that UTF-8 and memory_map set to True in version 1.2.4

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).

#40986 In pandas-dev/pandas;

· by emjironal was closed on Apr 26, 2021

BUG: Reduction operations fail

Bug

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).

#41074 In pandas-dev/pandas;

· by YarShev was closed on Jun 1, 2021

BUG: Change in behavior of replace with integer series and float to_replace

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

replacereplace methodreplace method

Status: Closed (completed).

#40371 In pandas-dev/pandas;

· by lbittarello was closed on Jun 1, 2021

BUG: New numpy dev caused ci to fail

CIContinuous IntegrationContinuous Integration

DependenciesRequired and optional dependenciesRequired and optional dependencies

Upstream issueIssue related to pandas dependencyIssue related to pandas dependency

Status: Closed (completed).

#40874 In pandas-dev/pandas;

· by phofl was closed on Apr 18, 2021

RLS: 1.2.5

Release

Status: Closed (completed).

#40917 In pandas-dev/pandas;

· by simonjayhawkins was closed on Jun 23, 2021

BUG: undocumented astype("category").astype(str) type inconsistency between pandas 1.1 & 1.2

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).

#41797 In pandas-dev/pandas;

· by timlod was closed on Jun 21, 2021

BUG: XS for multiple keys in combination with drop_level=False

Bug

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

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

Status: Closed (completed).

#41760 In pandas-dev/pandas;

· by JimZwartveld was closed on Jun 4, 2021

BUG: Pandas doesn't release the lock when a corrupted file is fed in. pandas==1.2.1 worked fine but pandas==1.2.4 has this issue.

Bug

IO Excelread_excel, to_excelread_excel, to_excel

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

Status: Closed (completed).

#41778 In pandas-dev/pandas;

· by SAH-UJA was closed on Jun 4, 2021

Backport PR #41924: PERF: fix regression in reductions for boolean/integer data

PerformanceMemory or execution speed performanceMemory or execution speed performance

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

Status: Merged (completed).

pandas-dev/pandasnumber 41963

#41963 In pandas-dev/pandas;

· by simonjayhawkins was closed on Jun 12, 2021

PERF: fix regression in reductions for boolean/integer data (assume no missing values)

PerformanceMemory or execution speed performanceMemory or execution speed performance

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

Status: Closed (abandoned).

pandas-dev/pandasnumber 41920

#41920 In pandas-dev/pandas;

· by jorisvandenbossche was closed on Jun 10, 2021

CI: pin psycopg2 in Linux_py37_cov on 1.2.x

CIContinuous IntegrationContinuous Integration

DependenciesRequired and optional dependenciesRequired and optional dependencies

Status: Merged (completed).

pandas-dev/pandasnumber 42073

#42073 In pandas-dev/pandas;

· by simonjayhawkins was closed on Jun 17, 2021

Backport PR #41987: TST: Un-xfail tests on numpy-dev

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

Status: Merged (completed).

pandas-dev/pandasnumber 42069

#42069 In pandas-dev/pandas;

· by simonjayhawkins was closed on Jun 17, 2021

Backport PR #41806 on branch 1.2.x"

IO Excelread_excel, to_excelread_excel, to_excel

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 41835

#41835 In pandas-dev/pandas;

· by twoertwein was closed on Jun 6, 2021

REGR: undocumented astype("category").astype(str) type inconsistency between pandas 1.1 & 1.2

CategoricalCategorical Data TypeCategorical Data Type

Status: Merged (completed).

pandas-dev/pandasnumber 42087

#42087 In pandas-dev/pandas;

· by simonjayhawkins was closed on Jun 21, 2021

Backport PR #42023: CI: pin fsspec

CIContinuous IntegrationContinuous Integration

Status: Merged (completed).

pandas-dev/pandasnumber 42067

#42067 In pandas-dev/pandas;

· by simonjayhawkins was closed on Jun 17, 2021

Backport PR #41780 on branch 1.2.x (DOC: 1.2.5 release date)

Docs

Status: Merged (completed).

pandas-dev/pandasnumber 42169

#42169 In pandas-dev/pandas;

· by meeseeksmachine was closed on Jun 21, 2021

Backport PR #42087: REGR: undocumented astype("category").astype(str) type inconsistency between pandas 1.1 & 1.2

CategoricalCategorical Data TypeCategorical Data Type

Status: Merged (completed).

pandas-dev/pandasnumber 42165

#42165 In pandas-dev/pandas;

· by simonjayhawkins was closed on Jun 21, 2021

Backport PR #41789 on branch 1.2.x (Bug in xs raising KeyError for MultiIndex columns with droplevel False and list indexe)

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

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

Status: Closed (abandoned).

pandas-dev/pandasnumber 41809

#41809 In pandas-dev/pandas;

· by meeseeksmachine was closed on Jun 4, 2021

CI/DOC: temporary pin environment to python 3.8

CIContinuous IntegrationContinuous Integration

Status: Merged (completed).

pandas-dev/pandasnumber 41092

#41092 In pandas-dev/pandas;

· by jorisvandenbossche was closed on Apr 22, 2021

Backport PR #40924: BUG: concat with DTI and all-None Index

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

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

Status: Merged (completed).

pandas-dev/pandasnumber 40942

#40942 In pandas-dev/pandas;

· by simonjayhawkins was closed on Apr 14, 2021

Backport PR #41092: CI/DOC: temporary pin environment to python 3.8

CIContinuous IntegrationContinuous Integration

Status: Merged (completed).

pandas-dev/pandasnumber 41095

#41095 In pandas-dev/pandas;

· by simonjayhawkins was closed on Apr 22, 2021

CI: pin numpy in the actions-37 env (pyarrow incompatibility)

CIContinuous IntegrationContinuous Integration

Status: Merged (completed).

pandas-dev/pandasnumber 41115

#41115 In pandas-dev/pandas;

· by jorisvandenbossche was closed on Apr 23, 2021

DOC: Start v1.2.5 release notes

Docs

Status: Merged (completed).

pandas-dev/pandasnumber 40902

#40902 In pandas-dev/pandas;

· by simonjayhawkins was closed on Apr 12, 2021

Backport PR #41115 on branch 1.2.x (CI: pin numpy in the actions-37 env (pyarrow incompatibility))

CIContinuous IntegrationContinuous Integration

Status: Merged (completed).

pandas-dev/pandasnumber 41120

#41120 In pandas-dev/pandas;

· by meeseeksmachine was closed on Apr 23, 2021