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BUG: Behavior change in pandas 3.x with <code>Series.resample</code> and <code>closed="right", how="right"</code>

Bug

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

Resampleresample methodresample method

Status: Open.

#62200 In pandas-dev/pandas;

· TomAugspurger opened on Aug 26, 2025

· 

3.0

BUG: resampling with origin=end_date includes extra elements in the bucket

Bug

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

Resampleresample methodresample method

Status: Open.

#62154 In pandas-dev/pandas;

· vasil-pashov opened on Aug 20, 2025

BUG: Empty column name in group dataframe when using pyarrow types

Bug

Resampleresample methodresample method

Status: Open.

#59823 In pandas-dev/pandas;

· dbalabka opened on Sep 16, 2024

BUG: Resampling to <code>"B"</code> frequency with <code>closed="right"</code> and <code>label="right"</code> adds empty bins

Bug

Resampleresample methodresample method

Status: Open.

#59495 In pandas-dev/pandas;

· torext opened on Aug 13, 2024

BUG: Incorrect output in groupby(...).resample(...).ohlc()

Bug

Groupby

Resampleresample methodresample method

Status: Open.

#53804 In pandas-dev/pandas;

· btodac opened on Jun 22, 2023

BUG: Unnecessary NonExistentTimeError when resampling weekly

Bug

Resampleresample methodresample method

Status: Open.

#53666 In pandas-dev/pandas;

· MarcoGorelli opened on Jun 14, 2023

BUG: resample with freq W-Mon and first data point starts on Monday doesn't respect closed

Bug

FrequencyDateOffsetsDateOffsets

Resampleresample methodresample method

Status: Open.

#53612 In pandas-dev/pandas;

· MarcoGorelli opened on Jun 12, 2023

BUG: Resampling to monthly/quarterly/yearly ignores offset parameter

Bug

FrequencyDateOffsetsDateOffsets

Resampleresample methodresample method

Status: Open.

#49697 In pandas-dev/pandas;

· rwijtvliet opened on Nov 14, 2022

BUG: Why is resampling with rule='7d' different than resampling with rule='168h'?

Bug

Resampleresample methodresample method

Status: Open.

#44996 In pandas-dev/pandas;

· mkp-gebensleben opened on Dec 21, 2021

BUG: resampling with origin='end_day' raises ValueError: Values falls before first bin

Bug

Resampleresample methodresample method

Status: Open.

#44957 In pandas-dev/pandas;

· mkp-gebensleben opened on Dec 18, 2021

BUG: Resampler agg cannot apply on list of functions

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

Bug

Resampleresample methodresample method

Status: Open.

#44400 In pandas-dev/pandas;

· Mengda-Li opened on Nov 11, 2021

BUG: Unexpected period range index shift

Bug

PeriodPeriod data typePeriod data type

Resampleresample methodresample method

Status: Open.

#44363 In pandas-dev/pandas;

· jmcinto opened on Nov 9, 2021