diff -r d5df428640ff -r ccf59c1f0b45 svgui/pyjs/jsonrpc/django/jsonrpc.py
--- a/svgui/pyjs/jsonrpc/django/jsonrpc.py	Thu Aug 17 15:43:25 2017 +0300
+++ b/svgui/pyjs/jsonrpc/django/jsonrpc.py	Thu Aug 17 16:26:32 2017 +0300
@@ -40,7 +40,7 @@
             service.add_method(func.__name__, func)
         else:
             emsg = 'Service "%s" not found' % str(service.__name__)
-            raise NotImplementedError, emsg
+            raise NotImplementedError(emsg)
         return func
     return remotify