[Python-modules-team] Bug#955414: python3-pip: pip fails to install packages with pyproject.toml

[Scott Kitterman]

On Tue, 31 Mar 2020 14:31:40 +0200 Christoph Reiter 
<reiter.christoph at gmail.com> wrote:
> Package: python3-pip
> Version: 20.0.2-2
> Severity: important
> 
> Dear Maintainer,
> 
> (Note: This doesn't affect upstream pip, only the Debian/Ubuntu version)
> 
> pip in Debian (and Ubuntu focal) fails to install Python packages which 
contain
> a pyproject.toml
> file. I've initially reported this upstream, but it turns out this is only
> broken in the Debian version of pip.
> 
> Related upstream issues:
> 
> * https://github.com/pypa/pip/issues/7946
> * https://github.com/pypa/pip/issues/7874
> 
> I've created a minimal reproducer:
> 
> https://github.com/lazka/pip-pyproject-bug

This looks like another instance of #954256 [1].  It looks like it is related 
to unvendoring pep517, but I don't have it entirely figured out yet.

Scott K

[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=954256