diff -r 6923074540dd -r dbc065a2f7a5 ProjectController.py
--- a/ProjectController.py	Thu Oct 04 11:25:42 2018 +0300
+++ b/ProjectController.py	Thu Oct 04 12:07:16 2018 +0300
@@ -41,6 +41,7 @@
 from datetime import datetime
 from weakref import WeakKeyDictionary
 from itertools import izip
+from six.moves import xrange
 
 import wx