Traceback (most recent call last):
  File "/usr/bin/gdebi-gtk", line 93, in <module>
    app.on_button_install_clicked(None)
  File "/usr/lib/python2.6/dist-packages/GDebi/GDebi.py", line 475, in on_button_install_clicked
    self.dialog_deb_install)
  File "/usr/lib/python2.6/dist-packages/GDebi/GDebi.py", line 736, in __init__
    super(FetchProgressAdapter, self).__init__()
NameError: global name 'FetchProgressAdapter' is not defined