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The thing i have yet to reliably figure out is this (i live in the science part of python): without a setup.py, how do I: from Cython.Build import cythonize

The thing i have yet to reliably figure out is this (i live in the science part of python): without a setup.py, how do I: from Cython.Build import cythonize import numpy as np import versioneer setup(..., version=versioneer.get_version(), cmdclass=versioneer.get_cmdclass(), ext_modules=cythonize(extensions), include_dirs=[np.get_include()], ...) I'm 100% on board with not having executable configuration files, except that we've been happily abusing them for years now and there are a lot of edge cases that i rely on now.

pdonis 7y ago
All of those setup options are now setup.cfg options: https://docs.python.org/3/distutils/configfile.html https://docs.python.org/3/distutils/configfile.html At least, that's supposed to be the case; I am not 100% certain that it always is. However, even so, AFAIK setup.cfg does not directly support using third-party libraries to compute the setup options, as your setup.py does. The only workaround I'm aware of for that if you want to get rid of setup.py is to have a separate script that generates setup.cfg using whatever libraries you need. However, I don't think that's the vision of the Python developers.
- hprotagonist 7y ago
  I get the idea -- but, how do I tell Cython "it's time to compile things now" from a file I can't execute?
  - pdonis 7y ago
    > how do I tell Cython "it's time to compile things now" from a file I can't execute? It looks like there are ways to specify which build tools your package requires; I would assume Cython would be one of the tools that can be specified since it's been around a while and gets a lot of usage, but I don't know for sure.
- kevin_thibedeau 7y ago
  There are lot that of options that setup.cfg doesn't support. "use_2to3" is one.
  - takeda 7y ago
    I never needed it, but I see 2to3 options there [1], are they not working? [1] https://setuptools.readthedocs.io/en/latest/setuptools.html#options https://setuptools.readthedocs.io/en/latest/setuptools.html#...
maxnoe 7y ago
pyproject.toml and setup.cfg can in some cases make a setup.py unnecessary. That does not mean you should not use it anymore if you have a good reason to use it. The ones you listed are examples. How ever, as explained in the article, you should still add the pyproject.toml

pdonis 7y ago

All of those setup options are now setup.cfg options: https://docs.python.org/3/distutils/configfile.html https://docs.python.org/3/distutils/configfile.html At least, that's supposed to be the case; I am not 100% certain that it always is. However, even so, AFAIK setup.cfg does not directly support using third-party libraries to compute the setup options, as your setup.py does. The only workaround I'm aware of for that if you want to get rid of setup.py is to have a separate script that generates setup.cfg using whatever libraries you need. However, I don't think that's the vision of the Python developers.

hprotagonist 7y ago
I get the idea -- but, how do I tell Cython "it's time to compile things now" from a file I can't execute?
- pdonis 7y ago
  > how do I tell Cython "it's time to compile things now" from a file I can't execute? It looks like there are ways to specify which build tools your package requires; I would assume Cython would be one of the tools that can be specified since it's been around a while and gets a lot of usage, but I don't know for sure.
kevin_thibedeau 7y ago
There are lot that of options that setup.cfg doesn't support. "use_2to3" is one.
- takeda 7y ago
  I never needed it, but I see 2to3 options there [1], are they not working? [1] https://setuptools.readthedocs.io/en/latest/setuptools.html#options https://setuptools.readthedocs.io/en/latest/setuptools.html#...

maxnoe 7y ago

pyproject.toml and setup.cfg can in some cases make a setup.py unnecessary. That does not mean you should not use it anymore if you have a good reason to use it. The ones you listed are examples. How ever, as explained in the article, you should still add the pyproject.toml