The fix per comment #7 is in aptdaemon, not software-properties-gtk & has not been released yet
Can confirm that manually editing, (replacing lines 40 -43), /usr/lib/python3/dist-packages/aptdaemon/client.py as shown in the link allows software-properties-gtk to start up & run Though it is a littles low to appear, about 4-5 sec's here -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1026066 Title: software-properties-gtk crashed with ImportError in /usr/lib/python3 /dist-packages/aptdaemon/client.py: No module named gobject To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/aptdaemon/+bug/1026066/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs