Sorry for this hurried message - I've done a new implementation of out ordered dict. This comes out of the discussion on this newsgroup (see blog entry for link to archive of discussion).
See the latest blog entry to get at it : http://www.voidspace.org.uk/python/weblog/index.shtml Criticism solicited (honestly) :-) We (Nicola Larosa and I) haven't yet made any optimisations - but there are two implementations to play with. One allows you to access the keys attribute as if it was a sequence (as well as a method). All the best, Fuzzyman http://www.voidspace.org.uk/python/index.shtml -- http://mail.python.org/mailman/listinfo/python-list