Traceback (most recent call last):
  File "/usr/lib/ubuntu-sso-client/ubuntu-sso-login", line 55, in <module>
    main()
  File "/usr/lib/python2.7/dist-packages/ubuntu-sso-client/ubuntu_sso/main/__init__.py", line 508, in main
    loop = source.start_setup()
  File "/usr/lib/python2.7/dist-packages/ubuntu-sso-client/ubuntu_sso/main/qt.py", line 58, in start_setup
    import dbus.mainloop.qt  # pylint: disable=W0621
ImportError: No module named qt