My User Experience Porting Off Setup.py

• efiboot

  2 4 10.0 Python

  You don't need a bootloader

With project.toml, the new strat is to build the wheel with `python3 -m build` and then install it with `pip install --root=$DESTDIR` plus a handful of flags to tell pip not to touch the network or the local cache.

It's not great, but it's also not terrible.

E.g. https://github.com/cbarrick/efiboot/blob/2ca46a7c27c837adf23...

• cliquematch

  1 8 10.0 C++

  Finding correspondence via maximum cliques

Thank you Gregory for writing this post. There have been a bunch of announcements about "setup.py has been deprecated", but few have clearly outlined how to move away from setup.py, and more importantly, fewer have outlined what a struggle it is to move away from setup.py.

I was sad to see setuptools officially deprecated, because it looks like another way in which Python packaging is being red-taped away for a non-expert. If someone like the OP (who has 10+ years programming Python) had to do so much for what appears to be a zstd CFFI/Rust wrapper, where does that leave the rest of us?

Here's a python package of mine that uses setup.py: https://github.com/ahgamut/cliquematch/blob/master/setup.py which I have not upgraded to the new tool(s) yet. I think I will need to upgrade it soon. If anyone has suggestions for a tool that will _fully replace_ setup.py, I would like to see tutorials with the following examples:

1. How would I build a package that has pure-Python files and data files? With setuptools I would use maybe MANIFEST.in or package_dir.

2. How would I build a package that has a CPython extension accessed via cffi? (this post points to the answer)

3. How would I build a package that has a CPython extension _without_ cffi, that just wraps some small C code I wrote with CPython's API? What about an extension that uses PyBind11? What about an extension that uses Rust?

4. How would I build a package that requires a "system" package like libblas-dev? Can something like numpy be built optimally without ever writing setup.py? What would a config for that look like? Last I remember numpy used their own patch of distutils to build, I wonder what it is now.

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• setuptools

  21 2,307 9.9 Python

  Official project repository for the Setuptools build system

  

To be fair, that seems to have been a 2 year warning:

https://github.com/pypa/setuptools/commit/3544de73b3662a27fa...

• CPython

  1,314 59,531 10.0 Python

  The Python programming language

  

"Has no maintainer" means there is no one who has said they have the expertise to be able to render final judgment on a bug report or other issue. "If no active maintainer is listed for a given module, then questionable changes should be discussed on the Core Development Discourse category, while any other issues can and should be decided by any committer." - https://devguide.python.org/core-developers/experts/index.ht...

In practice, what that means is if there is a bug report, like https://github.com/python/cpython/issues/71964 from 2016, then the fix may languish for years as no one in the core team is able to resolve it. You can see several people reported the bug, along with a comment from 2022 that "The cgi module is now deprecated following the acceptance of PEP 594" so will not be fixed.

The fixes I saw likely fall into the un-questionable changes that can be decided by any committer.

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