I.e. when %python3_pkgversion is 3.12, %__python3 is /usr/bin/python3.12
We assume that when packagers package for Python 3.X, they want to change both
%python3_pkgversion and %__python3 value.
Hence instead of copy-pasting this:
%global python3_pkgversion 3.X
%global __python3 /usr/bin/python3.X
They just need to do:
%global python3_pkgversion 3.X
Packagers who want to change the value of %__python3 without touching
%python3_pkgversion can still do it:
%global __python3 /usr/bin/pypy3
Related: rhbz#1950291
The %{? in the comment made the entire block of macros not work.
Since nobody actually used those on Fedora, because they did not exist,
we can safely remove them. No need to document this in the %changelog.
Related: rhbz#1950291
This allows e.g.:
%global extras cli,ghostwriter,pytz,dateutil,lark,numpy,pandas,pytest,redis,zoneinfo,django
%{pyproject_extras_subpkg -n python3-hypothesis %{extras}}
...
%pyproject_buildrequires -x %{extras}
(Note that %pyproject_extras_subpkg is a tiny wrapper around %python_extras_subpkg.)
Related: rhbz#1950291
