Re-add support for Python 3.8 by lowering setuptools version requirement

[noobie-bob]

Following setuptools dependency was added as part of commit 57787a7

https://github.com/libfuse/pyfuse3/blob/ced800ebe4c6a32224a4e4d656c4dd28d4fac4e5/pyproject.toml#L2C14-L2C32

requires = ["setuptools >= 78.1.1"]

But python3.8 only supports setuptools up to v75.3.2

bob in /test via 🐍 v3.8.17 (.venv38) 
❯ pip index versions setuptools
WARNING: pip index is currently an experimental command. It may be removed/changed in a future release without prior warning.
setuptools (75.3.2)
Available versions: 75.3.2, 75.3.1, 75.3.0, 75.2.0, 75.1.0, 75.0.0, 74.1.3, 74.1.2, 74.1.1, 74.1.0, 74.0.0, 73.0.1, 73.0.0, 72.2.0, 72.1.0, 71.1.0, 71.0.4, 71.0.3, 71.0.2, 71.0.0, 70.3.0, 70.2.0, 70.1.1, 70.1.0 ..............0.7.4, 0.7.3, 0.7.2
  INSTALLED: 75.3.2
  LATEST:    75.3.2

Is it please possible to yank v3.4.1+ higher version for python3.8 and less

[Nikratio]

Thanks for the report! Python 3.8 and also Python 3.9 are end-of-life upstream (https://devguide.python.org/versions/) and therefore also no longer supported by pyfuse3.

That said, if there's no effort in making it work, then I don't want to be in the way of it working. So if you can test if the modernized build still works with an older setuptools and create a pull request, I don't mind merging it.

[ThomasWaldmann]

pyfuse3 3.4.1 release requires that setuptools version because 77.0.0 is the minimum required for spdx license string support plus security issues in v77 make 78.1.1 the first version one must use for that.

you are correct that it is slightly inconsistent, because pyfuse3 3.4.1 still declared to support py38 and py39 via metadata, but that was fixed in 3.4.2:

pyfuse3 3.4.2 dropped support for them also from the declaration in package metadata and now requires py310+.

If you still must use python 3.8 or 3.9 and you can't just simply upgrade to 3.10+, your options are:

• use an older pyfuse3 version
• reverse patch that changeset (will likely work for pyfuse3 3.4.1)

https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html

"Support for project.license-files and SPDX license expressions in project.license (PEP 639) were introduced in version 77.0.0."

Also (that is the reason for this change), pip install has been complaining loudly since a while that support for the old license metadata is going away at some time in 2026.

Note: github CI currently only tests on py310+

[noobie-bob]

thanks both for taking a look,
@ThomasWaldmann , is it possible to yank v3.4.1 since its incorrectly declares support for python3.8?

[ThomasWaldmann]

@Nikratio I do not have admin permission on pypi, so that ^^^ is something you have to consider.

3.4.2 is out since 2 months and seems to work ok, so I think we could yank 3.4.1.

[Nikratio]

Done.