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Selecting multi rows by string in a DatetimeIndexed DataFrame

DatetimeDatetime data dtypeDatetime data dtype

good first issue

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

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#16710 In pandas-dev/pandas;

· by Yevgnen was closed on May 26, 2021

DataFrame.to_csv with empty dataframe probleme quoting

good first issue

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#15891 In pandas-dev/pandas;

· by parisni was closed on May 24, 2021

BUG: getitem access with floats and an object index

good first issue

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

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#17286 In pandas-dev/pandas;

· by prcastro was closed on May 26, 2021

DataFrame.__setitem__ fails with multiple values and duplicate column names

Bug

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

Status: Closed (completed).

#15695 In pandas-dev/pandas;

· by toobaz was closed on Jan 21, 2021

pandas.DataFrame.where not replacing NaTs properly

good first issue

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#15613 In pandas-dev/pandas;

· by grechut was closed on May 24, 2021

PERF: json_normalize

IO JSONread_json, to_json, json_normalizeread_json, to_json, json_normalize

PerformanceMemory or execution speed performanceMemory or execution speed performance

Status: Closed (completed).

#15621 In pandas-dev/pandas;

· by chris-b1 was closed on Mar 5, 2021

to_json on multiindex does not escape strings properly

good first issue

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#15273 In pandas-dev/pandas;

· by rs2 was closed on May 19, 2021

Incoherence between Index and MultiIndex when labels in list are not found

good first issue

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#15452 In pandas-dev/pandas;

· by toobaz was closed on May 24, 2021

"cannot reindex from duplicate axis" when adding cell of missing row to non-unique index

good first issue

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#16018 In pandas-dev/pandas;

· by toobaz was closed on May 24, 2021

ERR: Most consistent error handling when passing win_type='freq' in rolling

DatetimeDatetime data dtypeDatetime data dtype

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

Windowrolling, ewma, expandingrolling, ewma, expanding

Status: Closed (completed).

#15969 In pandas-dev/pandas;

· by TomAugspurger was closed on Dec 23, 2020

I case of dtype issues, read_csv doesn't give an error as useful as pd.to_numeric does

good first issue

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#15898 In pandas-dev/pandas;

· by p-himik was closed on May 24, 2021

DataFrame.groupby().std() fails on filtered DataFrame

good first issue

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#16174 In pandas-dev/pandas;

· by edhalter was closed on May 24, 2021

BUG: out-of-bounds datetime parsing

good first issue

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#15829 In pandas-dev/pandas;

· by jreback was closed on May 24, 2021

[pandas.tools.plotting._subplots] squeeze option is not respected if <code>ax</code> is provided

Visualizationplottingplotting

Status: Closed (completed).

#16253 In pandas-dev/pandas;

· by Bolayniuss was closed on Dec 23, 2020

DataFrame.loc[n] = dict(..) fails with some type combinations

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

good first issue

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

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#16309 In pandas-dev/pandas;

· by bmcfee was closed on May 24, 2021

API/DOC: Specification for <code>names</code> parameter in read_csv

Bug

IO CSVread_csv, to_csvread_csv, to_csv

Status: Closed (completed).

#16469 In pandas-dev/pandas;

· by gfyoung was closed on Dec 13, 2020

BUG: to_latex with multicolumn and multiindex joins cells which are on different hierarchy levels

good first issue

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#16719 In pandas-dev/pandas;

· by wlter was closed on May 26, 2021

cast to float when using <code>groupby.agg</code> with function returning <code>int</code> on <code>float</code> input

API Design

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

Groupby

Status: Closed (completed).

#17035 In pandas-dev/pandas;

· by toobaz was closed on May 3, 2021

The groupby filter output differs if we run an aggregate function before

Bug

good first issue

Groupby

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#17091 In pandas-dev/pandas;

· by arnaudlegout was closed on May 26, 2021

Bug: CustomBusinessHour bug with holidays

good first issue

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#16867 In pandas-dev/pandas;

· by ustcscgyer was closed on May 26, 2021

ENH/BUG: support a column interval index

good first issue

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

IntervalInterval data typeInterval data type

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#17130 In pandas-dev/pandas;

· by pirsquared was closed on Apr 12, 2021

DOC/BLD: host doc build artefacts of PRs

BuildLibrary building on various platformsLibrary building on various platforms

CIContinuous IntegrationContinuous Integration

Docs

Status: Closed (completed).

#17921 In pandas-dev/pandas;

· by jorisvandenbossche was closed on Feb 11, 2021

KeyError when calling to_coo() on SparseDataFrame

Bug

good first issue

SparseSparse Data TypeSparse Data Type

Status: Closed (completed).

#18414 In pandas-dev/pandas;

· by ediphy-azorab was closed on Dec 22, 2020

ERR: stricter checks on Index construction when tz is passed

API Design

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

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

TimezonesTimezone data dtypeTimezone data dtype

Status: Closed (completed).

#14093 In pandas-dev/pandas;

· by jreback was closed on Dec 22, 2020

Dataframe constructor misinterprets <code>columns</code> argument if nested list is passed in as the <code>data</code> parameter.

good first issue

Needs TestsUnit test(s) needed to prevent regressionsUnit test(s) needed to prevent regressions

Status: Closed (completed).

#14467 In pandas-dev/pandas;

· by madphysicist was closed on May 19, 2021