[Distutils] Finishing up PEP 517

[Daniel Holth]

I was able to implement PEP 517 build_wheel and build_sdist for enscons (on
bitbucket), and a click cli calling any backend mentioned in
pyproject.toml. Pretty simple. Not sure what to do with the config
dictionary.

SCons is not designed to be called twice in the same process with different
arguments. It would be easier for me to know that pip would only invoke one
PEP 517 function per subprocess, or to know all target directories in
advance. Otherwise the enscons.api subprocess has to invoke SCons in
another subprocess. SCons also builds all targets (wheel and sdist in same
invocation) by default.

"Alakazam!"

On Wed, Jun 28, 2017 at 3:52 PM Thomas Kluyver <thomas at kluyver.me.uk> wrote:

> On Wed, Jun 28, 2017, at 06:07 PM, Daniel Holth wrote:
>
> Is there a prototype implementation of pep 517 yet?
>
>
> - Flit has a PR with a prototype backend implementation, though it's not
> up to date with all the changes the PEP has undergone. I'll update it when
> we've agreed on a spec - it's still a fast moving target right now.
> - I have a prototype module frontends could use to call hooks here:
> https://github.com/takluyver/pep517 . It's mostly up to date, except for
> the issue with using sdist as a fallback for copying files for a wheel.
>
> Re: magic strings - like Nathaniel said, I haven't noticed them as part of
> any proposal so far.
>
> Thomas
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> Distutils-SIG maillist  -  Distutils-SIG at python.org
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