Python 3 multiprocessing pool

multiproc_pool.py

# Python3
import multiprocessing
print(multiprocessing.cpu_count())

def serial_function(some_variable):
    reslt=some_variable*5
    return reslt

list_of_variables=[3, 5]

start_time = time.time() 
if __name__ == '__main__':
    pool = multiprocessing.Pool(processes=multiprocessing.cpu_count())   # start worker processes

    res_list=[]
    for a_variable in list_of_variables:
        res_list.append(pool.apply_async(serial_function, (a_variable)))
    list_of_res = [res.get() for res in res_list]
print('elasped time:',time.time()-start_time,'seconds')

print(list_of_res)