We recently upgraded the mypy requirement to mypy v1.0. One of the new capabilities of mypy 1.0 is that it can now type ...

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

Code Sample, a copy-pastable example if possibleIn [93]: ser.eq('nil').sum()Out[93]: 1In [94]: ser.replace('nil', pd.NA)...

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...

From 2021-06-09 dev call, new discussion of https://github.com/pandas-dev/pandas/issues/22864Problem: Frequency string ...

ATM we vendor typing_extensions but mypy doesnt recognize it, so we can't actually use it. We should either remove it o...

Problem descriptionWhile attempting to serialize a pandas data frame with the to_parquet() method, I got an error messag...

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

Patched in https://github.com/pandas-dev/pandas/pull/47803Comment From: mroeschkeAgain made less strict in https://githu...

Code Sample, a copy-pastable example if possibleimport pandas as pddf=pd.DataFrame({ "KEY1": ["KEY1&qu...

Location of the documentationhttps://pandas.pydata.org/docs/development/code_style.htmlhttps://pandas.pydata.org/pandas-...

How about add fix/autofix ruff?I recently worked on STYLE enable ruff TCH and found that ruff reports some error could (...

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...

https://github.com/pandas-dev/pandas/pull/36567 eliminated fixed rolling window algorithms and unfortunately had a ~3x p...

Avoid check_stacklevel=False calls made in https://github.com/pandas-dev/pandas/pull/48171 if possibleComment From: mroe...

Currently take 31 minutes as opposed to 13/4 minutes on Linux/Windowshttps://github.com/pandas-dev/pandas/actions/runs/3...

NDFrame.align is annotated as def align(self: NDFrameT, other: NDFrameT, ...) -> NDFrameT: but actually other does no...

This ImportError has been appearing in a few builds lately e.g.https://github.com/pandas-dev/pandas/runs/6819149053?chec...