is it possible to use python multiprocessing in IP10?

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I'm trying to start a long running Python program, that runs in the background (i.e. doesn't take focus/time away from Igor), with which I can also communicate. The only communication I wish to do is shut the python program down.

I have Python code along the lines of

# task.py
import time

def task(queue, shutdown_event):
    while True:
        time.sleep(1.0)
        if shutdown_event.is_set():
            print("Shutting down")
            break
        print("Number 5 is alive")

 

I then try to start it running via the following lines in the python:

from multiprocessing import Process, Queue, Event
import task

shutdown_event = Event()
queue = Queue()

tasker = Process(target=task.task, args=(queue, shutdown_event))
tasker.start()

 

However, I get the following turning up in the Igor command window:

  Error -43 trying to open a file specified in start-up command: C:Program Files:WaveMetrics:Igor Pro 10 Folder:-c
  Error -43 trying to open a file specified in start-up command: C:Program Files:WaveMetrics:Igor Pro 10 Folder:from multiprocessing.spawn import spawn_main; spawn_main(parent_pid=6524, pipe_handle=3084)
  Error -43 trying to open a file specified in start-up command: C:Program Files:WaveMetrics:Igor Pro 10 Folder:--multiprocessing-fork

 

Does the python integration of IP10 allow further subprocesses or processes to start? A poorer alternative is using ExecuteScriptText, but it becomes a pain to stop the program running. I'd have to communicate via a value in a file or something along those lines.