--- a/mercurial/hgweb/server.py	Wed Jun 29 13:45:51 2011 +0200
+++ b/mercurial/hgweb/server.py	Wed Jun 29 15:00:00 2011 +0200
@@ -251,7 +251,7 @@
     if hasattr(os, "fork"):
         _mixin = SocketServer.ForkingMixIn
     else:
-        class _mixin:
+        class _mixin(object):
             pass
 
 def openlog(opt, default):