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...

In [5]: ser = pd.Series(0, index=range(10_000_000))In [6]: %timeit ser + range(len(ser))737 ms ± 15.8 ms per loop (mean ...

http://stackoverflow.com/questions/12877189/float64-with-pandas-to-csvWhat does R (or others) do?Comment From: pmorisset...

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

The docstring of DataFrame.isetitem (https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.isetitem.html) has th...

import numpy as npimport pandas as pdimport pandas._libs.join as libjoinleft = np.random.randint(0, 10**8, size=10**8)ri...

Research[X] I have searched the [pandas] tag on StackOverflow for similar questions.[X] I have asked my usage related qu...

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

import pandaspandas.read_excel('pandas_crash.xlsx')pandas_crash.xlsx crashes the Python process.Output of pd.show_versio...

DataFrame reductions with axis=1 can be expensive when there is more than 1 backing array. _reduce_axis1 improves on th...

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

In pandas 1.5.x and before, the dtype of the result is different when using axis=1:df = pd.DataFrame({'a': [1, 2, 3], 'b...

ser = pd.Series([1, 1, None, None], dtype="int64[pyarrow]")ser.mode(dropna=True)ser.mode(dropna=False)With eit...

Currently the online version of the PDEPs (linked on https://pandas.pydata.org/about/roadmap.html) are rendered by the w...

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

At https://pandas.pydata.org/docs/dev/development/contributing_codebase.html#validating-type-hints we tell people to val...

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

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