--- a/util/misc.py	Fri Oct 12 11:50:40 2018 +0300
+++ b/util/misc.py	Fri Oct 12 12:06:45 2018 +0300
@@ -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