Hi Guido, all, last year, I wrote a patch that allows meta-types to have slots. You had no time to look into it, and I said "take your time and wait until it is stable". I have been using this for quite a while now, and today I updated it for Python 2.3 . The patch is very small and simple. Essentially, it doesn't use a fixed offset into the internal etype structure, but computed this based upon tp_basicsize. This small patch also gives lots of flexibility to people, who like to add extra stuff to their dynamic type objects. (Well, I do this frequently) It would be nice if we could add this small feature, soon. http://www.python.org/sf/696193 Due to some SF bug, I had to submit this patch twice. thanks a lot - chris -- Christian Tismer :^) <mailto:tismer@tismer.com> Mission Impossible 5oftware : Have a break! Take a ride on Python's Johannes-Niemeyer-Weg 9a : *Starship* http://starship.python.net/ 14109 Berlin : PGP key -> http://wwwkeys.pgp.net/ work +49 30 89 09 53 34 home +49 30 802 86 56 pager +49 173 24 18 776 PGP 0x57F3BF04 9064 F4E1 D754 C2FF 1619 305B C09C 5A3B 57F3 BF04 whom do you want to sponsor today? http://www.stackless.com/