I'm affected by the same bug. Tried reintalling python and python-gi. No
effect.
Traceback (most recent call last):
File "/usr/bin/software-properties-gtk", line 38, in <module>
from softwareproperties.gtk.SoftwarePropertiesGtk import
SoftwarePropertiesGtk
File
"/usr/lib/python2.7/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py",
line 39, in <module>
from DialogCacheOutdated import DialogCacheOutdated
File
"/usr/lib/python2.7/dist-packages/softwareproperties/gtk/DialogCacheOutdated.py",
line 27, in <module>
import aptdaemon.client
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 70, in
<module>
class MemoizedMixIn(MemoizedTransaction, GObject.GObjectMeta):
File "/usr/lib/python2.7/dist-packages/gi/module.py", line 316, in
__getattr__
return getattr(self._introspection_module, name)
File "/usr/lib/python2.7/dist-packages/gi/module.py", line 135, in
__getattr__
self.__name__, name))
AttributeError: 'gi.repository.GObject' object has no attribute
'GObjectMeta'
