Due to changes in libnsl2 and libnsl2-devel package change build options in this package please. From libnsl2-1.2.0-1 there are following changes: - libraries have moved from %{_libdir}/nsl to %{_libdir} - header files have moved from %{_includedir}/nsl/rpcsvc to %{_includedir}/rpcsvc
This bug appears to have been reported against 'rawhide' during the Fedora 28 development cycle. Changing version to '28'.
This was fixed and python3 builds again. Thanks for reporting!