[Baypiggies] Help with starting new processes- updated

[Nam Nguyen]

Can't you use the stdin, and stdout pipes to communicate with the
subprocess? You can pass serialized data through the pipes.
Nam

On Sat, Aug 23, 2014 at 3:38 AM, Nathan Pease <n8pease at gmail.com> wrote:
> Can you pickle the queue?
> You might be able to pass the pickled queue on the command line to your
> subprocess command (I think you’d use StringIO to get a string from the
> Pickle, right?).
> Or, you could write the pickled queue to a file and the subprocess could
> unpickle the file. It should be easy if you can write the file to an
> expected location+name, or pass the file name on the command line.
> Another thought is you could use RPyC to send the queue to the subprocess
> after it has been launched. That might be more bring up than it’s worth tho…
>
> good luck!
> nate
>
> On Aug 22, 2014, at 7:41 PM, Tony Cappellini <cappy2112 at gmail.com> wrote:
>
> Updated- changed multiprocess to multiprocessing
>
> I'm running Python 2.7.6 on 32-Bit Windows7 Pro. (Python 3 isn't an option
> at the moment)
>
> I have a parent python script which spawns two subprocesses- where each
> subprocess is running
> in a new console window. I want to watch each process running. This is why
> I've explicitly used
> creationflags=CREATE_NEW_CONSOLE in the subprocess.Popen() call.
>
>
> The subprocesses are running a simple CLI program which are monitoring some
> embedded devices being tested.
> I don't want to use a GUI for them.
>
> Here is the code for the parent script
> http://pastebin.com/mNNCH1vY
>
> Ideally, I'd like the parent script to pass some information via a queue, to
> each subprocess.
> The queues have nice functionality which would allow the receiving process
> to work until the queue is empty,
> and then wait until it is no longer empty.
>
> I don't see a way to use pass a queue using the subprocess module,
> nor do I see a way to create a new console using the multiprocessing module.
> Multiprocessing makes it quite easy to pass a queue to subprocesses.
>
>
> I've spent a lot of time with the documentation for both modules, but it can
> be confusing.
>
> Is there a happy medium between these two modules that will help me
> get what I want?
>
>
>
> Thanks
>
>
>
>
> _______________________________________________
> Baypiggies mailing list
> Baypiggies at python.org
> To change your subscription options or unsubscribe:
> https://mail.python.org/mailman/listinfo/baypiggies
>
>
>
> _______________________________________________
> Baypiggies mailing list
> Baypiggies at python.org
> To change your subscription options or unsubscribe:
> https://mail.python.org/mailman/listinfo/baypiggies