Using Python's multiprocessing module, it's easy to create asynchronous subprocesses

async.py

#!/usr/bin/env python
# encoding: utf-8
import random
import time
import multiprocessing


if __name__ == '__main__':
    """Demonstration of GIL-friendly asynchronous development with Python's multiprocessing module"""

    def process(instance):
        total_time = random.uniform(0, 2)
        time.sleep(total_time)
        print('Process %s : completed in %s sec' % (instance, total_time))

    for i in range(10):
    """Create 10 non-blocking subprocesses that will have random runtimes"""
        multiprocessing.Process(target=process, args=(i,)).start()