from multiprocessing import Pool, Manager
import random
import time

def some_function(some_input):
    time.sleep(random.random())
    return some_input

def test():
    global testStr
    testStr = 'Hello'
if __name__ == '__main__':
    test()
    pool = Pool()
    manager = Manager()
    print(pool.map(some_function, [('Hello') for i in range(4)]))