--- a/controls/LogViewer.py	Thu Oct 04 11:25:42 2018 +0300
+++ b/controls/LogViewer.py	Thu Oct 04 12:07:16 2018 +0300
@@ -30,6 +30,7 @@
 
 import numpy
 import wx
+from six.moves import xrange
 
 from controls.CustomToolTip import CustomToolTip, TOOLTIP_WAIT_PERIOD
 from editors.DebugViewer import DebugViewer, REFRESH_PERIOD