Description of problem: Package python-funcparserlib fails to build from source in Fedora Rawhide. Version-Release number of selected component (if applicable): 0.3.6-28.fc35 Steps to Reproduce: koji build --scratch f36 python-funcparserlib-0.3.6-28.fc35.src.rpm Additional info: This package is tracked by Koschei. See: https://koschei.fedoraproject.org/package/python-funcparserlib Since Setuptools 58+ upstream removed support for 2to3 during builds. This is breaking change and thus package is FTBFS. For more info see this change: https://fedoraproject.org/wiki/Changes/Setuptools_58%2B