Branches for f19 and f20 exist, but this has never been built for those branches. A new branch for epel7 is required to build. This is related to https://bugzilla.redhat.com/show_bug.cgi?id=1113321, which requests a python26 version of this package for EL5.
Please also build for rawhide. Note: I am able to co-maintain, as I am an experienced packager. We will still need an epel7 branch in SCM, however.
This python module is a backport of the standard library importlib from Python 2.7. It should not be built for EPEL7 or any Fedora release, since those all have Python 2.7.