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pandas' recommendation on inplace deprecation and categorical column

CategoricalCategorical Data TypeCategorical Data Type

inplaceRelating to inplace parameter or equivalentRelating to inplace parameter or equivalent

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

Status: Open.

#57104 In pandas-dev/pandas;

· adrinjalali opened on Jan 27, 2024

BUG: possible inconsistency between <code>inplace=True</code> and <code>inplace=False</code> in <code>DataFrame.where/mask</code>

Bug

ConditionalsE.g. where, mask, case_whenE.g. where, mask, case_when

inplaceRelating to inplace parameter or equivalentRelating to inplace parameter or equivalent

Status: Open.

#57083 In pandas-dev/pandas;

· yuanx749 opened on Jan 26, 2024

series.rename doesn't return 'None' when inplace=True

Bug

inplaceRelating to inplace parameter or equivalentRelating to inplace parameter or equivalent

rename.rename, .rename_axis.rename, .rename_axis

Status: Open.

#28920 In pandas-dev/pandas;

· giuliobeseghi opened on Oct 11, 2019

DataFrame.reset_index(inplace=True) with column names collision brakes dataframe

Bug

inplaceRelating to inplace parameter or equivalentRelating to inplace parameter or equivalent

Status: Open.

#26998 In pandas-dev/pandas;

· s-wakaba opened on Jun 22, 2019

ENH: add inplace-kwarg to update

combine/combine_first/updateNDFrame.combine, combine_first, updateNDFrame.combine, combine_first, update

Enhancement

inplaceRelating to inplace parameter or equivalentRelating to inplace parameter or equivalent

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

Status: Open.

#21858 In pandas-dev/pandas;

· h-vetinari opened on Jul 11, 2018

inplace clipping does not account for mixed precision

Bug

inplaceRelating to inplace parameter or equivalentRelating to inplace parameter or equivalent

Status: Open.

#21476 In pandas-dev/pandas;

· crepererum opened on Jun 14, 2018

DataFrame.sort_values(inplace=True) is slow and eats too much memory

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

inplaceRelating to inplace parameter or equivalentRelating to inplace parameter or equivalent

PerformanceMemory or execution speed performanceMemory or execution speed performance

Status: Open.

#15389 In pandas-dev/pandas;

· liori opened on Feb 14, 2017

DataFrame.reset_index(inplace=True) does not return self, harming composability

API Design

Bug

inplaceRelating to inplace parameter or equivalentRelating to inplace parameter or equivalent

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

Status: Open.

#14251 In pandas-dev/pandas;

· wesm opened on Sep 19, 2016

DataFrame.replace with inplace=True fails when column names are not unique

Closing CandidateMay be closeable, needs more eyeballsMay be closeable, needs more eyeballs

Docs

inplaceRelating to inplace parameter or equivalentRelating to inplace parameter or equivalent

Non-Unique Columns/Rows

replacereplace methodreplace method

Status: Open.

#9106 In pandas-dev/pandas;

· djrobust opened on Dec 18, 2014