lucid test failures: module python-gi not available

https://ci.landscape.canonical.com/view/Landscape%20Client/job/landscape-client-test/label=lucid/78/consoleText

error: landscape.ui.controller.tests.test_configuration [
Traceback (most recent call last):
  File "/usr/bin/trial", line 22, in <module>
    run()
  File "/usr/lib/python2.6/dist-packages/twisted/scripts/trial.py", line 363, in run
    test_result = trialRunner.run(suite)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/runner.py", line 836, in run
    return self._runWithoutDecoration(test)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/runner.py", line 865, in _runWithoutDecoration
    run()
  File "/usr/lib/python2.6/dist-packages/twisted/trial/runner.py", line 860, in <lambda>
    run = lambda: suite.run(result)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/runner.py", line 299, in run
    TestSuite.run(self, result)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/unittest.py", line 1390, in run
    test(result)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/unittest.py", line 1378, in __call__
    return self.run(result)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/runner.py", line 175, in run
    super(LoggedSuite, self).run(result)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/unittest.py", line 1390, in run
    test(result)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/unittest.py", line 1378, in __call__
    return self.run(result)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/runner.py", line 148, in run
    test(result)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/unittest.py", line 1378, in __call__
    return self.run(result)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/runner.py", line 148, in run
    test(result)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/runner.py", line 389, in __call__
    return self.run(result)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/runner.py", line 385, in run
    result.addError(self, self.error)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/reporter.py", line 226, in addError
    self._originalReporter.addError(test, error)
  File "/usr/lib/python2.6/dist-packages/twisted/trial/reporter.py", line 1013, in addError
    test, util.excInfoOrFailureToExcInfo(err))
  File "/usr/lib/python2.6/dist-packages/subunit/__init__.py", line 568, in addError
    self._addOutcome("error", test, error=error, details=details)
  File "/usr/lib/python2.6/dist-packages/subunit/__init__.py", line 622, in _addOutcome
    for line in self._exc_info_to_unicode(error, test).splitlines():
  File "/usr/lib/python2.6/unittest.py", line 156, in _exc_info_to_string
    if exctype is test.failureException:
AttributeError: 'ErrorHolder' object has no attribute 'failureException'

Which leads me to:

http://twistedmatrix.com/trac/ticket/4496

So, I tried running without --subunit, and got to the Real Failure:

===============================================================================
[ERROR]: landscape.ui.controller.tests.test_configuration

Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/twisted/trial/runner.py", line 651, in loadByNames
    things.append(self.findByName(name))
  File "/usr/lib/python2.6/dist-packages/twisted/trial/runner.py", line 461, in findByName
    return reflect.namedAny(name)
  File "/usr/lib/python2.6/dist-packages/twisted/python/reflect.py", line 464, in namedAny
    topLevelPackage = _importAndCheckStack(trialname)
  File "/var/jenkins/workspace/landscape-client-test/label/lucid/landscape/ui/controller/tests/test_configuration.py", line 1, in <module>
    from landscape.ui.controller.configuration import (
  File "/var/jenkins/workspace/landscape-client-test/label/lucid/landscape/ui/controller/configuration.py", line 3, in <module>
    from landscape.ui.model.registration.proxy import RegistrationProxy
  File "/var/jenkins/workspace/landscape-client-test/label/lucid/landscape/ui/model/registration/proxy.py", line 3, in <module>
    import landscape.ui.model.registration.mechanism as mechanism
  File "/var/jenkins/workspace/landscape-client-test/label/lucid/landscape/ui/model/registration/mechanism.py", line 7, in <module>
    from landscape.ui.lib.polkit import PolicyKitMechanism
  File "/var/jenkins/workspace/landscape-client-test/label/lucid/landscape/ui/lib/polkit.py", line 5, in <module>
    from gi.repository import GObject
exceptions.ImportError: No module named gi.repository
-------------------------------------------------------------------------------

Which leads me to python-gi, which doesn't appear to be available for lucid:

ubuntu@ubuntu:/var/jenkins/workspace/landscape-client-test/label/lucid$ apt-cache search python-gi
python-git - Python library to interact with Git repositories
ubuntu@ubuntu:/var/jenkins/workspace/landscape-client-test/label/lucid$