I've received a bug: https://bugzilla.redhat.com/show_bug.cgi?id=2134832
The basic issue is that Fedora uses both /usr/lib/python3.10 and /usr/lib64/python3.10; i.e. they separate the 32-bit and 64-bit files. The KiCad build scripts currently put _pcbnew.so into /usr/lib/python3.10, but because that file is a 64-bit shared library, it should go into /usr/lib64/python3.10 on Fedora. I tried manually running the command that CMakeLists.txt uses to find the path: python3 -c "import distutils.sysconfig;print(\"%s\"%distutils.sysconfig.get_python_lib(plat_specific=0, standard_lib=0, prefix=''))" and that indeed returns: lib/python3.10/site-packages I could try overriding this by explicitly setting the PYTHON_SITE_PACKAGE_PATH variable, but I doubt that is the correct approach. The above command returns a deprecation warning, suggesting using sysconfig instead of distutils.sysconfig. Here is everything that python3 has for the sysconfig.get_paths() method: python3 -c "from sysconfig import get_paths; print(get_paths())" {'stdlib': '/usr/lib64/python3.10', 'platstdlib': '/usr/local/lib64/python3.10', 'purelib': '/usr/local/lib/python3.10/site-packages', 'platlib': '/usr/local/lib64/python3.10/site-packages', 'include': '/usr/include/python3.10', 'platinclude': '/usr/include/python3.10', 'scripts': '/usr/local/bin', 'data': '/usr/local'} So stdlib looks like the correct base path, although we'd have to tack on the site-packages suffix. Note that I don't think we should use platlib, because the bulk of KiCad is installed into /usr rather than /usr/local. Please let me know what you think is the correct solution. Steve -- You received this message because you are subscribed to the Google Groups "KiCad Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to devlist+unsubscr...@kicad.org. To view this discussion on the web visit https://groups.google.com/a/kicad.org/d/msgid/devlist/5a8a8020-0f35-0eac-027e-1e159400f9cd%40gmail.com.