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

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df = pd.DataFrame( {"A": [None, 2, 3], "B": [1.0, np.nan, 3.0], "C": ["foo", ...

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we already have too many public indexers.....Comment From: blussIs there a fast replacement for set_value? Using loc in ...

freq = pd.offsets.CustomBusinessDay(weekmask="Mon Wed Fri")per = pd.Period("2023-04-06", freq=freq)&...

Code Sample, a copy-pastable example if possibleimport pandas as pdimport numpy as nprng = pd.date_range('1/1/2018', per...

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This is the origin of #23558 and #23677, but IMO worthy to fix in its own right:Trying to create a MultiIndex from a lis...

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Code Sample, a copy-pastable example if possibleimport pandas as pda = pd.DataFrame({'a': [1,2,3,1,2,3], 'b': [2,1,2,1,2...

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Pandas version checks[X] I have checked that the issue still exists on the latest versions of the docs on main hereLocat...

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When I use read_csv to read a file which has columns with the same name, the names are amended with .1, .2, etc, when ma...

12935 added full support for duplicate column names (in header or in names) by mangling them. While this has been consi...