Traceback (most recent call last):
  File "/usr/sbin/update-software-center", line 34, in <module>
    from softwarecenter.db.update import rebuild_database
  File "/usr/share/software-center/softwarecenter/db/update.py", line 23, in <module>
    import glib
  File "/usr/lib/pymodules/python2.7/gtk-2.0/glib/__init__.py", line 22, in <module>
ImportError: No module named _glib