Hello Pythonistas,
since Fedora 27, we have been patching Python to install packages to
/usr/local/lib(64)/python3.X/site-packages if not in rpmbuild:
https://fedoraproject.org/wiki/Changes/Making_sudo_pip_safe
The patch was a pragmatic hack in the distutils module that proved to be
working quite reliably over the years. Unfortunately, the distutils module is
deprecated and is going to be removed from Python 3.12:
https://www.python.org/dev/peps/pep-0632/
Working with the upstreams of setuptools, pip, and Python, as well as other
Linux distros Python maintainers (Arch, Debian), we have now changed the way
the patch works to patch the sysconfig module instead, changing the
posix_prefix install scheme to use /usr/local paths.
See https://discuss.python.org/t/pep-632-deprecate-distutils-module/5134/104
for details.
This change is aligned with the upstream plan for Python 3.11 to offer
distributors a way to supply their installation schemes to sysconfig:
https://bugs.python.org/issue43976
Nothing should change for Fedora packages. If you encounter problems, do let us
know and we'll try to help solve them.
Software that reads the posix_prefix install_scheme on runtime to figure out
where to install stuff should behave the right way by default. OTOH software
that reads it to figure out where to load stuff from might need changes, see
e.g. the change we did in dnf:
https://github.com/rpm-software-management/dnf/pull/1782
Relevant commit: https://src.fedoraproject.org/rpms/python3.10/c/47935cfb9870
Bodhi update: https://bodhi.fedoraproject.org/updates/FEDORA-2021-31c7a2fca8
We might later introduce this to older Python versions as well, but we are not
planning to backport this to older Fedora releases.
--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok
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