There is no event on popup-menu. fixes #188

mitterlib/ui/ui_pygtk.py

@@ -1103,7 +1103,7 @@ class Interface(object):
         return self._url_popup(widget, path, event)
         return True
 
-    def _message_popup(self, widget, event, user_data=None):
+    def _message_popup(self, widget, user_data=None):
         """Builds the popup with the URLs in the message."""
         _log.debug('Popup')
         (path, _) = widget.get_cursor()