Executing a python script while it is running

bobicanprogram icanbob at gmail.com
Wed Jun 17 18:10:54 CEST 2009


On Jun 17, 1:42 am, Zach Hobesh <hob... at gmail.com> wrote:
> On Tue, Jun 16, 2009 at 6:37 PM, Chris Rebert<c... at rebertia.com> wrote:
> > On Tue, Jun 16, 2009 at 6:21 PM, <hob... at gmail.com> wrote:
> >> Hey Dave,
>
> >> Thanks for the helpful responses.
>
> >>> Option 2 is what you get by default.  Naturally it depends on what the
> >>> application  is using to launch the batch file, but the most common cases
> >>> will launch a separate process.
>
> >> The app ended up delaying starting the second batch file until it finished
> >> the first. I had the app trigger an infinite loop on completion, and sent
> >> two files through at the same time. The second file finished seconds after
> >> the first, but the batch file didn't trigger until I closed the first one.
>
> > Are you sure you aren't unknowingly having the app wait on the first
> > batch file process until it terminates? How exactly are you launching
> > the batch files?
>
> > Cheers,
> > Chris
> > --
> >http://blog.rebertia.com
>
> Hey Chris,
>
> I actually think that's what's happening, which is fine in my case
> (for now anyway) as I just need them all to complete, we don't need
> them running at the same time.  I'm using a job management system, and
> they have the option of triggering a command line after completing a
> job.
>
> A better/safer solution might be spawning another job and re-inserting
> to the jms queue.
>
> Thanks again,
>
> Zach


You might want to take a look at the Python-SIMPL toolkit (http://
www.icanprogram.com/06py/main.html).   SIMPL uses a Send/Receive/Reply
interprocess messaging scheme which will naturally queue requests for
you.   Without too much effort you may be able to reorient your scheme
to eliminate the batch file entirely.

bob



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