On 26. 05. 22 22:08, Owen Taylor wrote:

> OK, I'll work on coming up with some patches. Do you have an opinion about
> whether it makes sense to make the %_prefix support complete with something like:
>
> - %python3_sitelib %(RPM_BUILD_ROOT= %{__python3} -Ic "import sysconfig;
> print(sysconfig.get_path('purelib'))")
> +%python3_sitelib %(RPM_BUILD_ROOT= %{__python3} -Ic "import sysconfig;
> print(sysconfig.get_path('purelib', sysconfig.get_default_scheme(),
> {'platbase': '%{_prefix}', 'base': '%{_prefix}')})
>
> Without that, the --prefix %{_prefix} additions won't work in isolation, and
> will require something else to redefine python3_sitelib/python3_sitearch.

Using vars={'platbase': '%{_prefix}', 'base': '%{_prefix}')} makes sense to me
(you can omit the second parameter (scheme) if you pass vars by name).