[Stackless] Stackless Digest, Vol 50, Issue 17
Robert MannI
robmnl at gmail.com
Fri Mar 21 22:22:39 CET 2008
Just want to thank everyone, Richard, Phoenix (cool name!) and Andrew
here.
This is really a mature community of solid programmers.
Phoenix, I believe simpledb will be opened up for more users soon.
Charles, the sdb team lead and his team are going to roll out an
extensive update in Q2 2008. So I'm hoping April :p
Simpledb has really nice sides to it - scalability! It's a bit slow
when getting lots of items serially though, because you do one HTTP
call to get one item at a time. That's why concurrency is
important. On the other hand, Charles and his team are going to
release an API call that allows you to get multiple items with one
HTTP call - so by that time, I won't even need multi threading anymore.
But stackless really caught my eye!! Such a refreshing programming
paradigm!
Regarding this thread, I will give the StacklessModule a go :)
Many thanks,
Rob
On Mar 21, 2008, at 7:14 PM, Andrew Francis wrote:
> Hi Robert:
>
>> When I do stackless.run(), are all tasklets run at
> the >same time? Or are they executed serially, one
>> tasklet staring after the other one has finished
>> executing?
>
> Stackless.run() starts the scheduler. The tasklets are
> executed in a first-come-first-servered-round-robin
> fashion. Ordering is changed when tasklets explicitly
> yield with a schedule() or block on a channel.
>
>> I am evaluating if I can use stackless python to do
>> multiple concurrent HTTP calls to amazon's simpledb
>> service, using the python boto library.
>
> I downloaded boto and took a quick look. I see urllib
> and httplib. Unmodified, Stackless will block. Perhaps
> if you use Richard Tew's StacklessModule and
> monkeypatching, you can get boto up with little
> modification. Myself, I use Twisted so I would have to
> look more closely at the simpleDb protocol. I am sort
> of interested myself now....
>
> Cheers,
> Andrew
>
>
>
>
>
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