Please branch and build python-requests-futures in epel9. If you do not wish to maintain python-requests-futures in epel9, or do not think you will be able to do this in a timely manner, I would be happy to be a co-maintainer of the package (FAS carlwgeorge). Alternatively, if you add the Python Packagers SIG (python-packagers-sig) I can request the epel9 branch through that.