/usr/bin/coverage is too generic a name for this python specific tool. More over debian/ubuntu use /usr/bin/python-coverage. To to avoid divergence here, I suggest to use that name, and for compat (to be phased out) provide a symlink from /usr/bin/coverage -> python-coverage
python-coverage-3.7-1.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/python-coverage-3.7-1.fc20
Package python-coverage-3.7-1.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing python-coverage-3.7-1.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-19618/python-coverage-3.7-1.fc20 then log in and leave karma (feedback).
python-coverage-3.7-1.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.