[Python-Dev] Stackless Python

[Phillip J. Eby]

At 12:31 AM 6/2/04 +0200, Christian Tismer wrote:
>Phillip J. Eby wrote:
>
>>At 06:34 AM 6/1/04 -0700, Guido van Rossum wrote:
>>
>>> > It is most probably possible to implement soft-switchign in Jython.
>>>
>>>That's a rather vague statement; I'd like to hear from Samuele about
>>>that.
>
>I believe it is doable, and I'll ask him. If java can use
>something like function pointers, it is possible.

There are various things that correspond to function pointers.  Sort 
of.  You'll need to be a bit more specific than that.


>  If you have
>to have compiled calls all the time, well, I did not invent Java,
>and I don't want to know who was it. (Actually I do :)

Keep in mind that Jython *compiles* Python code to Java bytecodes.  It is 
*not* a Python interpreter written in Java.  I suspect this will severely 
limit the applicable approaches.

Googling "Java co-operative multitasking" and "Java asynchronous methods" 
turns up plenty of hits on people who are trying to figure out how to do 
them, but not much about any successes.  :)  Indeed, the only thing I've 
ever run into that does it, is that commercial system I mentioned, which 
does it by writing a Java VM in Java, so they can control its execution.  I 
don't think that idea will go over very well with the Jython team.  :)