Who cares exactly why it doesn't work? We know how to fix it by doing something different (put build dependencies in a static file and have them installed by pip before running setup.py). On Tue, May 3, 2016 at 3:33 PM Donald Stufft <donald@stufft.io> wrote:
On May 3, 2016, at 3:28 PM, Alex Grönholm <alex.gronholm@nextday.fi> wrote:
As I pointed out in my previous post, "extended commands" are not the only use case for setup_requires -- upgrading setuptools itself would enable support for PEP 508 style conditional requirements. This currently does not work because if you have such requirements in your setup(), setuptools will fail when parsing those before it even has a chance to act on the minimum setuptools requirement specification in setup_requires.
I don’t think this would work anyways without some terrible hacks since by the time setup_requires have been installed setuptools has already been imported so the *old* version will be in sys.modules.
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