pyproject.toml for packaging

[yochem]

I'm not entirely sure if support for setup.py can be dropped, but I leave that up to the maintainers. This can replace the following files:

MANIFEST.in
setup.py
setup.cfg

[fschrempf]

Thanks for your work! I'm not a Python packaging expert, so my feedback capabilities are limited, but I found some problems running this on Python 3.13.7 with setuptools 80.9.0.

[yochem]

Thanks for your comments! I'll take a look at it this weekend and do some further testing.

[yochem]

I've incorporated your requested changes and can confirm it can now be installed "from source" in a GitHub Codespace with the following tools/versions:

• Ubuntu 24.04.2
• python 3.12.1
• pip 23.2.1

[fschrempf]

Thanks for keeping up the good work and sorry for the delay. Here are two more suggestions.

@doceme Do you have any general objections? Would you mind if I merge this?

[fschrempf]

With the other changes, we are now depending on a more recent version of setuptools, so this should be lifted to v80.

Suggested change

	requires = ["setuptools>=61.0"]
	requires = ["setuptools>=80.0"]

[fschrempf]

Instead of duplicating the version here, we can still parse it from the C file with a little overhead. I would suggest to do:

Suggested change

	dynamic = ["readme"]
	version = "3.8"
	dynamic = ["readme", "version"]

And then keep the setup.py script with the following content to parse the version string from the C file and pass it to the setup routine:

#!/usr/bin/env python

from setuptools import setup

version = "0.0"

lines = [x for x in open("spidev_module.c").read().split("\n") if "#define" in x and "_VERSION_" in x and "\"" in x]

if len(lines) > 0:
    version = lines[0].split("\"")[1]
else:
    raise Exception("Unable to find _VERSION_ in spidev_module.c")

setup(
    version = version,
)