Your package python3-openid failed to build from source in current F28. https://koji.fedoraproject.org/koji/taskinfo?taskID=24884851 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
Created attachment 1442751 [details] build.log
Created attachment 1442752 [details] root.log
Created attachment 1442753 [details] state.log
This not building blocks the transition to Python 3.7.
https://src.fedoraproject.org/rpms/python3-openid/pull-request/1