Re: [Spyce-users] How to manage a long running process with spyce?

[Jonathan E. <jon...@ca...>]

On Mon, 06 Jun 2005 22:02:04 -0400, "Jonathan Taylor"
<jon...@ut...> said:
> I was thinking of using pool module.  I tried to do something like:
> 
> pool["process"] = os.popen("/some/path/to/long.py")
> 
> but it seems the page waits for long.py to finish.  I was hoping to have 
> it just display its progress.
> 
> :(
> 
> Any ideas?

This sort of thing is tricky if you haven't done it before.

In my experience the best cross-platform way to do this sort of thing is
with threads.  (Thread A runs the process and updates a shared variable,
like the Spyce pool; thread B reads the progress from the pool.) 
www/index.spy does this when it autogenerates the documentation on a
fresh install.  You can try to avoid extra threads by using select to
make sure your reads won't block, but ymmv especially on win32.

-Jonathan