--- a/runtime/WampClient.py	Thu Aug 16 10:52:20 2018 +0300
+++ b/runtime/WampClient.py	Thu Aug 16 10:53:54 2018 +0300
@@ -338,6 +338,7 @@
 
 
 def SetServer(pysrv):
+    global _PySrv
     _PySrv = pysrv