On 26. 05. 22 6:27, Neal Gompa wrote:
On Thu, May 26, 2022 at 12:10 AM Owen Taylor
<otaylor(a)redhat.com> wrote:
>
> [ At Miro's request, resending this to python-devel so the discussion can be
public ]
>
> Hi Miro -
>
> When rebuilding a package to include in a Flatpak, we want to install *everything*
under prefix=/app - that includes Python modules. (Paths will be adjusted properly when
running the Flatpak.)
>
> For years, the way we did that is by installing a
/usr/lib64/python3.10/distutils/distutils.cfg:
> ===
> [install]
> prefix=/app
> ===
>
> This is part of the flatpak-rpm-macros package that gets installed in the buildroot
for Flatpak rebuilds
>
> In Fedora 36, this no longer works for 'pip install' - it seems that pip
unconditionally uses 'sysconfig' rather than 'distutils' to determine
install paths for Python >= 3.10.
>
> I see that you filed
https://github.com/pypa/pip/issues/10647 which landed in pip for
pip-22, but Fedora 36 / pip-21 this isn't present? And in any case, that seems like
it's something for 'sudo pip install' rather than package installation. I
actually don't really follow how the Python macros are getting things installed into
/usr/lib rather than /usr/local/lib.
>
> Any advice about how we can make the installation into /app work? Hopefully in a
future-proof way...
>
What's stopping us from upgrading pip in F36? It's packaged separately
from Python itself already...
Well, technically probably the *Updates policy*, but we could carefully
evaluate the impact of such upgrade and eventually decide to do it.
However, it would make no difference standalone (see my longer previous reply
to Owen).
--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok