You're not using mod_python or something, are you?  I was assuming you
were using "paster serve" which uses a single interpreter instance.
By the way, if the class member thing is throwing you off, you can
also try using a module-level variable.

Best Regards,
-jj

On 5/4/07, Matt Billenstein <[EMAIL PROTECTED]> wrote:
> BTW, I'll add that I can do this in a simple standalone python script,
> spawn a thread and have both that thread and the main thread stuff data
> into a list or something...
>
> thx
>
> m
>
> On Fri, May 04, 2007 at 06:17:29PM -0700, Matt Billenstein wrote:
> >
> > Yeah, I was doing self.status = "blah" in the worker thread...  The
> > thread the controller is in doesn't seem to ever get this value...
> >
> > Using Class.status = "blah" doesn't seem to help much either...
> >
> > thx
> >
> > m
> >
> > On Fri, May 04, 2007 at 05:59:15PM -0700, Shannon -jj Behrens wrote:
> > >
> > > On 5/4/07, Matt Billenstein <[EMAIL PROTECTED]> wrote:
> > > >
> > > > On Fri, May 04, 2007 at 05:27:42PM -0700, Shannon -jj Behrens wrote:
> > > > > On 5/4/07, Matt <[EMAIL PROTECTED]> wrote:
> > > > > > Hi, I have a pylons app which I want to spawn a long-running process
> > > > > > from.  While this process is running (might be an hour or so), I 
> > > > > > want
> > > > > > the page that kicked off this process to just display status (maybe
> > > > > > referesh ever 30 seconds or so)...  Does anyone have some pointers 
> > > > > > on
> > > > > > how this should be done or what packages I should be looking into?
> > > > >
> > > > > I've done this before, but not in Pylons.  Spawning a long running
> > > > > process or thread is fine.  Watch out for Paste because I think Ian
> > > > > put in some code to watch for runaway threads--it's probably fine.
> > > > > Use a timer and AJAX to have the Web page poll the server to see if
> > > > > the work is done.  (You could use Comet, but polling is probably fine.
> > > > >  Ignore this statement if you don't know what I'm talking about.)  In
> > > > > the best case, you can use a progress bar on the page.  Just work your
> > > > > way through it; I'm sure you'll be fine.
> > > >
> > > > Any recommendations on passing status between the worker thread and the
> > > > controller when it's polling?  I tried just using class variables, but
> > > > they don't seem to get updated between the threads...
> > >
> > > How were you updating the class variable?  ClassName.variable = "foo"?
> > >  If you do self.variable = "foo", you're shadowing the class variable.
> > >  By the way, naturally, watch out for race conditions.  Another option
> > > is to use the queue module and have the worker thread push messages
> > > onto the queue, and the controller can read messages from the queue.
> > > I tend to prefer message queues over explicit lock management.
> > >
> > > Best Regards,
> > > -jj

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