--- a/web/request.py	Wed Sep 16 15:17:42 2015 +0200
+++ b/web/request.py	Wed Sep 16 15:50:42 2015 +0200
@@ -967,8 +967,10 @@
     def __getattribute__(self, attr):
         raise AuthenticationError()
 
-    def __nonzero__(self):
+    def __bool__(self):
         return False
+    
+    __nonzero__ = __bool__
 
 class _MockAnonymousSession(object):
     sessionid = 'thisisnotarealsession'