[Distutils] Extracting distutils into setuptools

[xoviat]

So since PEP 517 is going into setuptools anyway, we can sys.path.insert(0,
NEW_DISTUTILS_LOCATION) and then import distutils in the interface before
setup.py is loaded. Seems simple enough.

2017-09-27 11:27 GMT-05:00 Nick Coghlan <ncoghlan at gmail.com>:

> On 27 September 2017 at 23:35, Donald Stufft <donald at stufft.io> wrote:
> > I suspect this might be difficult, but I haven’t actually tried it. Our
> > trick (and really setup tools itself relies on this too) is that
> setuptools
> > monkey patches distutils at runtime to make distutils into setuptools. It
> > only has to patch a few bits and pieces right now, but I suspect that if
> > this happened it’d have to monkey patch the entire namespace. It would
> > probably also break people who mix and match imports from setuptools and
> > distutils.
>
> Right, my assumption was that pip would need to ensure that setuptools
> took over the distutils namespace before any of the code in setup.py
> ran, so that any monkeypatches and state modifications in other code
> would all take place in the setuptools provided copy, and the standard
> library's copy would never even get loaded.
>
> However, I don't think that's a new requirement: I believe you already
> need to do that, since the first line might be "from distutils import
> setup".
>
> Cheers,
> Nick.
>
> --
> Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
>
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