diff -r cbdac78eb93c -r 2de61e2fbf14 runtime/WampClient.py
--- a/runtime/WampClient.py	Mon Aug 13 14:58:59 2018 +0200
+++ b/runtime/WampClient.py	Mon Aug 13 15:00:51 2018 +0200
@@ -338,6 +338,7 @@
 
 
 def SetServer(pysrv):
+    global _PySrv
     _PySrv = pysrv