Oops!

pardusflatpakgui/updateallwindow.py

@@ -223,7 +223,7 @@ class UpdateAllWindow(object):
                 download_size_mib_str = ""
                 name = updated_ref.get_appdata_name()
 
-                tree_model = self.TreeModel().get_model()
+                tree_model = self.TreeModel.get_model()
                 tree_iter = tree_model.get_iter_first()
                 while tree_iter:
                     real_name = tree_model.get_value(tree_iter, 0)