simple-master-worker.py

from multiprocessing import Process, Queue
import time
import os


def worker(q, output_q):
    while True:
        print 'im the worker', os.getpid()
        print 'got ', q.get()
        output_q.put(55)
        time.sleep(1)


q = Queue()
output_q = Queue()
q.put([42, None, 'hello'])
p = Process(target=worker, args=(q, output_q))
p.start()


while True:
    print 'im the master', os.getpid()
    print 'giving you more stuff in your queue'
    q.put(42)
    print 'master got back', output_q.get()
    time.sleep(5)