Pandas BUG: groupby.agg raises KeyError: "['col1', 'col5'] not found in axis"

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas pre-commit issue in Gitpod

Hi Pandas team,I am facing a problem while running pre-commit install inside Gitpod. This is the error I'm getting while...

Pandas BUG: Assigning S-typed to df column yields different dtype than passing via dict to the constructor

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: NDFrame._where returns an unexpected dtype

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: pd.PeriodDtype(freq=CustomBusinessDay()) raises on main but isn't deprecated

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas ENH: implement SeriesGroupBy.corrwith

Sample data>>> import pandas as pd>>> pd.__version__ # on current master'1.1.0.dev0+613.g97c0ce962'&g...

Pandas BUG: Inconsistency in datetime & timedelta binary operations in pandas-2.0

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas Pandas groupby sum misbehaves when one of the columns has string objects.

Code Sample, a copy-pastable example if possibledf = pd.DataFrame({'A': 'a b c'.split(), 'B': [1,2,3], 'C': [4,6, 5]})df...

Pandas BUG: round, ceil, floor returning incorrect results with Division By Zero warning in pandas-2.0

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas ENH: define nonzero() on extension arrays

This caused a few issues when we got a Boolean-Dtype extension array which was used as mask/indexer instead of a numpy a...

Pandas BUG: Automatic upcast to object fails when unstacking datetime/timedelta with incompatible fill_value

Converting to object before then unstack works, whereas automatic upcast does not happen. Missing values are replaced w...

Pandas Dask shuffle performance help

Hi Folks, I'm experimenting with a new shuffle algorithm for Dask dataframe. This is what backs distributed versions of...

Pandas ENH: ExtensionDtype._dtype_with_na/_maybe_promote

import numpy as npimport pandas as pdii = pd.interval_range(1, 10)ser = pd.Series(ii).copy()mask = np.zeros(ser.shape, d...

Pandas BUG: assignment with enlargement gives object dtype with ExtensionArrays

From https://github.com/pandas-dev/pandas/issues/32271, when setting with enlargment, the dtype gets converted into obje...

Pandas BUG: ArrowTemporalProperties object has no attribute day_name

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: tz_convert not implemented for arrow timestamps

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: TypeError when printing dataframe with numpy.record dtype column

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas ENH: HTML repr for groupby dataframe and series

Feature Type[X] Adding new functionality to pandas[ ] Changing existing functionality in pandas[ ] Removing existing fun...

Pandas ENH: add new columns to existing table with pd.to_sql

Feature Type[ ] Adding new functionality to pandas[X] Changing existing functionality in pandas[ ] Removing existing fun...

Pandas BUG: groupby.cumcount returns NaN and dtype=float if groupby column contains np.nan

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...
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