--- a/svgui/pyjs/jsonrpc/jsonrpc.py	Fri Oct 06 17:52:34 2017 +0300
+++ b/svgui/pyjs/jsonrpc/jsonrpc.py	Mon Oct 09 12:30:14 2017 +0300
@@ -2,7 +2,7 @@
 import gluon.contrib.simplejson as simplejson
 
 
-class JSONRPCServiceBase:
+class JSONRPCServiceBase(object):
 
     def __init__(self):
         self.methods = {}