I used to get the same exception. Running /usr/lib/ubuntu-sso-client/ubuntu-sso-login manually resulted in the following exception:
Traceback (most recent call last):
File "/usr/lib/ubuntu-sso-client/ubuntu-sso-login", line 66, in <module>
from ubuntu_sso.main import main
File "/usr/lib/python2.7/dist-packages/ubuntu-sso-client/ubuntu_sso/main/__init__.py", line 96, in <module>
from ubuntu_sso.main import linux as source
File "/usr/lib/python2.7/dist-packages/ubuntu-sso-client/ubuntu_sso/main/linux.py", line 464, in <module>
from ubuntu_sso.main import qt
File "/usr/lib/python2.7/dist-packages/ubuntu-sso-client/ubuntu_sso/main/qt.py", line 39, in <module>
from PyQt4 import QtCore
RuntimeError: the sip module implements API v9.0 to v9.1 but the PyQt4.QtCore module requires API v8.1
It seemed to be a problem with python-sip and python-qt4. Re-installing both packages fixed it for me.
I used to get the same exception. Running /usr/lib/ ubuntu- sso-client/ ubuntu- sso-login manually resulted in the following exception:
Traceback (most recent call last): ubuntu- sso-client/ ubuntu- sso-login" , line 66, in <module> python2. 7/dist- packages/ ubuntu- sso-client/ ubuntu_ sso/main/ __init_ _.py", line 96, in <module> python2. 7/dist- packages/ ubuntu- sso-client/ ubuntu_ sso/main/ linux.py" , line 464, in <module> python2. 7/dist- packages/ ubuntu- sso-client/ ubuntu_ sso/main/ qt.py", line 39, in <module>
File "/usr/lib/
from ubuntu_sso.main import main
File "/usr/lib/
from ubuntu_sso.main import linux as source
File "/usr/lib/
from ubuntu_sso.main import qt
File "/usr/lib/
from PyQt4 import QtCore
RuntimeError: the sip module implements API v9.0 to v9.1 but the PyQt4.QtCore module requires API v8.1
It seemed to be a problem with python-sip and python-qt4. Re-installing both packages fixed it for me.