It looks like an epel7 branch exists, but there is no build. I've applied for commit access to help co-maintain any issues.
https://admin.fedoraproject.org/pkgdb/package/rpms/python-funcsigs/
Successful scratch build: https://koji.fedoraproject.org/koji/taskinfo?taskID=17324343
python-funcsigs-1.0.2-4.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2017-5c2d6629a7
python-funcsigs-1.0.2-4.el7 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2017-5c2d6629a7
python-funcsigs-1.0.2-4.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.