--- a/connectors/PYRO/__init__.py	Mon Apr 15 00:36:41 2013 +0200
+++ b/connectors/PYRO/__init__.py	Wed Apr 17 10:54:17 2013 +0900
@@ -45,6 +45,7 @@
             from util.Zeroconf import Zeroconf
             r = Zeroconf()
             i=r.getServiceInfo(service_type, location)
+            if i is None : raise Exception, "'%s' not found"%location
             ip = str(socket.inet_ntoa(i.getAddress()))
             port = str(i.getPort())
             newlocation = ip+':'+port