--- a/util/misc.py	Fri Nov 23 11:01:20 2018 +0100
+++ b/util/misc.py	Fri Nov 23 12:13:24 2018 +0100
@@ -29,6 +29,7 @@
 
 from __future__ import absolute_import
 import os
+from functools import reduce
 
 from util.BitmapLibrary import AddBitmapFolder
 from util.TranslationCatalogs import AddCatalog