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...
--
真実はいつも一つ!/ Always, there's only one truth!