Add notin convenience method to DataFrame/Series classesThis may already have been discussed, but I couldn't find any ex...

First, to all maintainers, thank you for your hard work! Pandas is a lifesaver.Code Sample, a copy-pastable examplefrom ...

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

When we do a groupby transform/reduce that requires operating group-by-group, we construct a sorted (DataFrame|Series) s...

we renamed _data -> _mgr to provide more clarity on the internals; we should add a DeprecationWarning on calling this...

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

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

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

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

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

When creating a nullable integer array from boolean values, we are being inconsistent between a boolean numpy array and ...

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I experience a weird pandas groupby behavior.Sometimes the groupby doesn't work, it just outputs the original dataframe....

AFAICT this exists to allow users to apply a different function to each group. I could be convinced that this is worth ...

This codedf=pd.DataFrame([['שלום','עליכם', 'מלאכי השלום', 'ברוכים הבאים']])df.columns=['A','B','C','D']dfdoes this:See t...

Is your feature request related to a problem?DataFrame.iterrows does not preserve types. There are lots of users reporti...

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

For PA, freq is redundant with dtype. For DTA/TDA, it means something very different from what it means for PA. The on...

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Both Categorical and SparseArray found implementing a .map method useful. This allows them to efficiently apply a functi...