I found one more source of this bug (It was pointed by Marsikus at habrahabr.ru): https://github.com/openstack/oslo.config/compare/3.18.0...master
As you can see, oslo.config have dependency for python-rfc3986== 0.2.0 in version 3.18.0, and 0.2.2 in stable/newton. And https://releases.openstack.org/newton/index.html#oslo-config says that 'Newton' is 3.17.0. I think it is a maintenance mistake from oslo.config upstream. ** Also affects: nova Importance: Undecided Status: New ** Also affects: oslo.config Importance: Undecided Status: New ** No longer affects: nova -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1653967 Title: nova raises ConfigFileValueError for URLs with dashes To manage notifications about this bug go to: https://bugs.launchpad.net/openstack-requirements/+bug/1653967/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs