Howdy, please find attached my latest running version of continuationmodule.c which is really able to do continuations. You need stackless Python 0.3 for it, which I just submitted. This module is by no means ready. The central functions are getpcc() and putcc. Call/cc is at the moment to be done like: def callcc(fun, *args, **kw): cont = getpcc() return apply(fun, (cont,)+args, kw) getpcc(level=1) gets a parent's current continuation. putcc(cont, val) throws a continuation. At the moment, these are still frames (albeit special ones) which I will change. They should be turned into objects which have a link to the actual frame, which can be unlinked after a shot or by hand. This makes it easier to clean up circular references. I have a rough implementation of this in Python, also a couple of generators and coroutines, but all not pleasing me yet. Due to the fact that my son is ill, my energy has dropped a little for the moment, so I thought I'd better release something now. I will make the module public when things have been settled a little more. ciao - chris -- Christian Tismer :^) mailto:tismer@appliedbiometrics.com Applied Biometrics GmbH : Have a break! Take a ride on Python's Kaiserin-Augusta-Allee 101 : *Starship* http://starship.python.net 10553 Berlin : PGP key -> http://wwwkeys.pgp.net PGP Fingerprint E182 71C7 1A9D 66E9 9D15 D3CC D4D7 93E2 1FAE F6DF we're tired of banana software - shipped green, ripens at home