Python 3.13 UserWarning: The '__version__' attribute is deprecated and will be removed in MarkupSafe 3.1

[Zethson]

/home/lukas/miniforge3/envs/scanpy/lib/python3.13/site-packages/session_info2/__init__.py:124: UserWarning: The '__version__' attribute is deprecated and will be removed in MarkupSafe 3.1. Use feature detection, or `importlib.metadata.version("markupsafe")`, instead.
  and (v := getattr(pkg, "__version__", None))

[flying-sheep]

Yeah? What’s this issue about?

session-info2 exists because session-info relies on the __version__ attribute convention, so something needed to fill the niche that can deal with exactly that: getting the version from the metadata and therefore dealing with packages without the completely optional __version__ attribute. (session-info doesn’t access the metadata and just crashes when the attribute is missing!)

session-info2 still tries to access it in case a package has a divergent attribute for some reason, but that’s it.

So what are you asking for here? That session-info2 ignores any warning while accessing the attribute?

[Zethson]

Sorry, I had to run and just quickly pasted that before getting back to my laptop.
Yes, I think that these warnings could probably be ignored right? They're not useful to the user and might only imply that something went wrong when it probably didn't.

[flying-sheep]

Which warnings should be silenced? I’d expect libraries to raise a DeprecationWarning or FutureWarning, but the example you posted is just a generic UserWarning.

[flying-sheep]

OK, once we and MarkupSafe do a new release, this should be fixed.