--- a/runtime/WampClient.py	Sun Apr 07 21:08:07 2019 +0200
+++ b/runtime/WampClient.py	Tue Apr 09 13:08:03 2019 +0200
@@ -28,7 +28,7 @@
 import json
 import os
 import re
-from builtins import str as text
+from six import text_type as text
 from autobahn.twisted import wamp
 from autobahn.twisted.websocket import WampWebSocketClientFactory, connectWS
 from autobahn.wamp import types, auth