I've made a mistake in isinstance usage in py2/py3 changes. Fix it.
PR #1012
Metadata Update from @tkopecek: - Issue set to the milestone: 1.17 - Issue tagged with: bug, easyfix
Commit 304b1708 fixes this issue
Commit 3cc443df fixes this issue
This issue has been migrated to Fedora Forge: https://forge.fedoraproject.org/koji/koji/issues/1011
Please continue any further discussion there.