DOC: Clarification on Python 3.13 support

[hoodmane]

Pandas version checks

The issue doesn't still exist on the latest versions of the docs on main since
https://pandas.pydata.org/docs/dev/getting_started/install.html#python-version-support
refers to https://scientific-python.org/specs/spec-0000/ which says Python 3.13 is supported. So the question is about the released version 2.2.3

Location of the documentation

https://pandas.pydata.org/docs/getting_started/install.html#python-version-support

Documentation problem

In this issue @StanFromIreland pointed out that Pandas docs say:

Python version support

Officially Python 3.9, 3.10, 3.11 and 3.12.

I see that there are Python 3.13 wheels, that it is tested in CI, and pyproject.toml includes the Programming Language :: Python :: 3.13 classifier. Is it an accidental omission that Python 3.13 isn't included in the officially supported list? If it isn't officially supported, it would be good to call this out more obviously.

Suggested fix for documentation

Perhaps the new text in the dev docs should be backported?

[rhshadrach]

Thanks for the report. Indeed pandas supports 3.13, although our last release was from prior to 3.13. I expect the 3.13 wheels on PyPI to be functional.

Perhaps the new text in the dev docs should be backported?

I do not think this is worth the effort. We generally do not update the docs once a release is published.

I also want to highlight from the CPython thread the comment:

However: this'll be because you're trying to build Pandas with an older Cython version. This has been fixed in Cython for a while.

[hoodmane]

Thanks for the clarification @rhshadrach, it makes sense to me.

I also want to highlight from the CPython thread python/cpython#131354 (comment):

To be clear, I have not had any trouble building pandas with Python 3.13, presumably because I am building with an up to date version of Cython. I only got involved in that thread because I saw that @StanFromIreland claimed that pandas did not support Python 3.13 and I am hoping to start distributing a Python 3.13 pandas soon so I was concerned by that.