[Twisted-Python] Re: Twisted-Python Digest, Vol 48, Issue 41

Steve Holden steve at holdenweb.com
Tue Mar 25 15:20:41 EDT 2008

Don Dwiggins wrote:
> Andrew Francis wrote:
>> I am building a WS-BPEL processor. WS-BPEL is about
>> business logic and exotic message exchange patterns. I
>> gave a talk at PyCon 2008 called "Adventures in
>> Stackless Python Twisted Integration."
> Andrew, thanks for the reply.  I saw a message about your work, and have 
> bookmarked your "Adventures" blog.
>> My strategy is to separate the business logic as much
>> as possible from the underlying networking.
> My goal exactly, and my concern is with how to do that while still 
> respecting the needs of the underlying networking (and in my case, a 
> large amount of interaction with a database).
>> At the lower levels, I use Stackless Python in conjunction
>> with Twisted. A side-effect of this approach is that I
>> can block waiting for a Twisted call to finish.
> I'll be very interested to learn more about the melding of the two 
> paradigms.
> One question: I had the impression that Stackless is mostly an academic 
> exercise, sort of a proof of concept.  Is this wrong?  How stable, 
> portable, etc. is Stackless at this point?  Is it a reasonable choice 
> for a commercial application?
Well, CCP are running 40,000+ simultaneous (paying) users on a 250-CPU 
cluster. If you'd call that a commercial application then I guess the 
answer is "yes".

>> Right now, I am simplifying one of my prototypes so I
>> can post it as a full-blown example of all the
>> techniques I use. Give me a few days.
> I'll try to be patient.  8^)
Steve Holden        +1 571 484 6266   +1 800 494 3119
Holden Web LLC              http://www.holdenweb.com/

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