diff -r 2a70d5240300 -r 21164625b393 controls/DiscoveryPanel.py
--- a/controls/DiscoveryPanel.py	Fri Nov 23 11:01:20 2018 +0100
+++ b/controls/DiscoveryPanel.py	Fri Nov 23 12:13:24 2018 +0100
@@ -26,10 +26,12 @@
 
 from __future__ import absolute_import
 import socket
+from six.moves import xrange
 import wx
 import wx.lib.mixins.listctrl as listmix
 from zeroconf import ServiceBrowser, Zeroconf
 
+
 service_type = '_PYRO._tcp.local.'