The definition of the USFederalHolidayCalendar is not correct. from pandas.tseries.holiday import USFederalHolidayCalend...

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https://github.com/pandas-dev/pandas/pull/25063 made the 0.24.x sort=True behavior be enabled by sort=None. This allows ...

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Avoid memory bloat by keeping a table of object ids observed. Will require some Cython codeComment From: jbrockmendel@mr...

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

related #6066 (on Float64Index too)The 'KeyError' on slicing was discussed multiple times but I'm still not sure if the ...

Code Sample, a copy-pastable example if possibleimport pandas.util.testing as tmtm.makeFloatIndex().difference(tm.makeSt...

I often want to remove certain elements from an index while retaining the original ordering of the index. For this reaso...

As part of #22811 I added a sort parameter to the difference set operation with a default of True. The other set operati...

I think the expected value of (a, b) in the function below is (5, 6).def foo(x, a=1, b=2): print(a, b) return xdf ...

IMO somewhat unexpected behavior depending on the arguments provided to shift after a groupby:In [26]: ser = pd.Series(r...

Is your feature request related to a problem?Doing groupby().diff() with a big dataset and many groups is quite slow. In...

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Is your feature request related to a problem?cython supports line coverage but pyx files are currently not included in t...