如何在python中停止多进程

Question

When trying to run multiprocessing on a for loop all the process are being executed but the program is not terminated and keep running.

How can i stop the program after all elements in the list got processed?

def multiprocess_for_loop(*args, list_to_iter_over, function):
# the element in iterable is the first argument in the function
output = Queue()
processes = [Process(target=function, args=(elem,) + args) for elem in list_to_iter_over]
logging.info(f"start multiprocess for-loop on list: {list_to_iter_over}")
for p in processes:
    p.start()

results = []
for p in processes:
    results.append(output.get())

for p in processes:
    p.join()

logging.info("finished multiprocessing for-loop")
return results

Answer 1

Every process write on Queue? If a process don't write in it, your code keep stuck in that for.