On Tue, Apr 22, 2008 at 10:23:22PM +0200, alexander krohn wrote: -> Titus Brown schrieb: -> >Hi, Alexander, can you give us a short example that doesn't work? -> > -> > -> i think it's a problem about the traversal. try: class RootDirectory(AccessControlled, Directory): ... Apparently the method resolution order requires things in this order!? Took me a little while to track down. cheers, --titus -> class RootDirectory(Directory, AccessControlled): -> _q_exports = ['', ] -> def _q_index(self): -> return "moin" -> -> def _q_access(): -> raise AccessError()