The issue appears for OSC version 3.8.1 in Ubuntu Ocata UCA, after pip- installing OSC 3.9.0 I get the correct error message:
$ osc/bin/openstack extension list --network HttpException: Service Unavailable (HTTP 503) (Request-ID: req-f790c8ee-6185-47de-8512-8405dc5e57cd) ** Also affects: python-openstackclient (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1675394 Title: Unhelpful error message when neutron server is unavailable To manage notifications about this bug go to: https://bugs.launchpad.net/python-openstackclient/+bug/1675394/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs