lesson04_submit_multiple_arg.py

# SuperFastPython.com
# example issuing an async task with multiple arguments
from random import random
from time import sleep
from concurrent.futures import ProcessPoolExecutor

# custom function to be executed in a worker process
def task(number, value):
 # report a message
 print(f'Task received {value}', flush=True)
 # block for a moment to simulate work
 sleep(value)
 # return a new value
 return number + value

# protect the entry point
if __name__ == '__main__':
 # create the process pool
 with ProcessPoolExecutor() as exe:
 # issue an asynchronous task
 future = exe.submit(task, 100, random())
 # get the result once the task completes
 result = future.result()
 # report the result
 print(result)