According to the logs, it seems that CI for python3.9 in C9S uses tests from Fedora but they are not able to install all dependencies because python3-tox is not available in C9S. CI dashboard for python3.9-3.9.13-3.el9: https://dashboard.osci.redhat.com/#/artifact/brew-build/aid/46788980 Log: http://artifacts.osci.redhat.com/testing-farm/43f0271b-e6e5-4681-8d80-4845f34e3b48/work-tests.ymlkrBhcu/ansible-output.txt
tox is in EPEL 9 now, so we could enable it. See the following commits for an example of how to use it: https://gitlab.com/redhat/centos-stream/rpms/pyproject-rpm-macros/-/commit/76dc49fd1e2564d611175f3d3ad2c83cf43c2ab5 https://gitlab.com/redhat/centos-stream/rpms/pyproject-rpm-macros/-/commit/44772c3c74a73be96ed350a043f4a7a34e405ee7