DOC: Pandas 2.2.3 pyproject.toml missing "Python 3.13" in classifiers -- but Pandas supports this Python version

[surfaceowl]

Pandas version checks

• I have checked that the issue still exists on the latest versions of the docs on main here

Location of the documentation

This does not directly impact Pandas behavior, so Docs is the best fit for issue from what I can see. On searching docs, this is the closest ref: https://pandas.pydata.org/docs/dev/getting_started/install.html

I also searched:
https://pandas.pydata.org/docs/dev/search.html?q=3.13

Documentation problem

Pandas 2.2.3 pyproject.toml file does not include Python 3.13 in the list of classifiers.

Although Pandas 2.2.3 is broadly compatible with Python 3.13, that fact is not documented in pyproject.toml causing Pandas version support to be shown incorrectly on on PyPi and other python sources.

The Pandas release announcement on 20 Sept 2024 https://pandas.pydata.org/docs/whatsnew/v2.2.3.html states: "Pandas 2.2.3 is the first version of pandas that is generally compatible with the upcoming Python 3.13, and both wheels for free-threaded and normal Python 3.13 will be uploaded for this release." In addition, I have tested Pandas 2.2.3 with Python 3.13.0rc3 and not found issues.

No documentation on current active docs reference Python 3.13: https://pandas.pydata.org/docs/dev/search.html?q=3.13

Impact -- People do not know Pandas is compatible with Python 3.13*

• on PyPi -- Pandas 2.2.3 does not show Python 3.13 Programming Language Classifier.
• on pyreadiness.org for Python 3.13 - Pandas does not show up as compatible with 3.13 https://pyreadiness.org/3.13/

Suggested fix for documentation

Suggested fix:

• in pandas main branch
  
• Add the following line to pandas/pyproject.toml in the classifiers block:
  'Programming Language :: Python :: 3.13',
  

Why it's better:
Adding this change would populate the Programming Language section of the Classifiers on PyPi, which would then flow through to other sites like pyreadiness.org.

[rhshadrach]

cc @lithomas1

[nahcol10]

Add the line Programming Language :: Python :: 3.13 in the classifiers section of pandas/pyproject.toml to officially mark Python 3.13 compatibility.

[project]
name = "pandas"
version = "2.2.3"
...
classifiers = [
"Programming Language :: Python",
"Programming Language :: Python :: 3.13",
...
]

[rhshadrach]

Do we need to cut a new 2.2.4 release with perhaps just this fix? cc @pandas-dev/pandas-core

[mroeschke]

IMO I'd say no since this appears to be just a documentation issue (but an unfortunate oversight). I see the 3.13 wheels on conda forge and pypi so if pip and conda are able to grab those wheels I don't think it's worth releasing the same wheel to update documenting metadata

[dhelms33]

Take

[dhelms33]

@mroeschke Hello, I began work on this 36 minutes ago and am new to Pandas! Is this issue still available to contribute to? I opened a pull request, but fear that somebody beat me to it.

#60007

[mroeschke]

Yes sorry, it appears someone else has already opened a pull request. I would recommend finding another issue labeled good first issue