Please create python3-pylibravatar subpackage to support python3. See https://fedoraproject.org/wiki/Packaging:Python#Example_spec_file for example.
The packaging on our side is ready, but upstream doesn't quite support python3 yet. http://pkgs.fedoraproject.org/cgit/python-pylibravatar.git/tree/python-pylibravatar.spec#n1
python-pylibravatar-1.6-2.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/python-pylibravatar-1.6-2.fc20
python-pylibravatar-1.6-2.fc19 has been submitted as an update for Fedora 19. https://admin.fedoraproject.org/updates/python-pylibravatar-1.6-2.fc19
python-pylibravatar-1.6-2.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/python-pylibravatar-1.6-2.fc18
python-pylibravatar-1.6-2.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.
python-pylibravatar-1.6-2.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
python-pylibravatar-1.6-2.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.