Traceback (most recent call last):
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 1000, in on_partition_list_treeview_button_press_event
    self.partman_popup(widget, event)
  File "/usr/lib/ubiquity/ubiquity/plugin.py", line 44, in wrapper
    return target(self, *args, **kwargs)
  File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 734, in partman_popup
    partition_list_menu.popup(None, None, None, button, time)
TypeError: popup() takes exactly 7 arguments (6 given)