Traceback (most recent call last):
  File "/usr/share/software-center/softwarecenter/view/appview.py", line 1543, in _on_transaction_finished
    self._set_cursor(action_btn, self._cursor_hand)
  File "/usr/share/software-center/softwarecenter/view/appview.py", line 1510, in _set_cursor
    x, y = pointer.get_state(self.window)[0]
TypeError: window should be a GdkWindow