diff -r 80b225e9a6b6 -r 7373e3048167 ProjectController.py
--- a/ProjectController.py	Fri Oct 12 11:50:40 2018 +0300
+++ b/ProjectController.py	Fri Oct 12 12:06:45 2018 +0300
@@ -39,6 +39,7 @@
 from threading import Timer
 from datetime import datetime
 from weakref import WeakKeyDictionary
+from functools import reduce
 from six.moves import xrange
 
 import wx