[ANNOUNCE] Garbage collection for Python

[Robin Becker]

In article <38F826CF.DBDC71EF at zipzap.ch>, Boris Borcic <zorro at zipzap.ch>
writes
>Just van Rossum wrote:
>> 
>> - Will Ware and I have worked hard on a complete rewrite of the
>>   uthread module. It is a *vast* improvement over the old one.
>>   It offers a very nice thread object and several handy threading
>>   widgets. It already can do stuff threading.py can only *dream*
>>   about, like pausing (blocking) a thread from another thread or
>>   posting an exception from another thread (!).
>
>Simple examples of useful new idioms that this permits ?
>
>BTW, I remember there exists a package for lisp, called
>"screamer", that turns it in a backtracking non-deterministic
>language in the style of prolog, through a device called
>CPS (continuation-passing style) transformation. While
>python lacks S-expressions and lisp-style macros that
>allow this for lisp, continuations are clearly the key
>component of this gimmick. It might be worth its while
>to have a better look.
>
>There is also Oz. http://www.mozart-oz.org/ - I've long
>dreamt of a language with some of the semantics of Oz
>and Python syntax and libs. continuations and uthreads
>seem to bring python somewhat closer to Oz.
>
...
I second this, while the ideas may be complex continuations provide some
really useful idioms eg iterators etc
-- 
Robin Becker