[Distutils] PEP 517 - specifying build system in pyproject.toml

[Thomas Kluyver]

Hi,

I'd like to make another push for PEP 517, which would make it possible
to build wheels from a source tree with other build tools, without
needing setup.py.

https://www.python.org/dev/peps/pep-0517/

Last time this was discussed we made a couple of minor changes to the
PEP, but we didn't want to accept another packaging related PEP until
PEP 518 was implemented in pip. I'm pleased to say that that
implementation has just been merged:
https://github.com/pypa/pip/pull/4144 .

I have an implementation of a build backend according to the current PEP
517 spec in a pull request on flit:
https://github.com/takluyver/flit/pull/77/files#diff-6df5630df9568322a453f03159fc8fe8

Thanks,
Thomas