在Python中与time.Sleep（）同时运行两个函数

Question

import threading
import time

array_values = []


def a(array):
    time.sleep(1)
    array.append('a')


def b(array):
    time.sleep(5)
    array.append('b')


def runInParallel(*fns):
    z = 0
    while z < 6:
        if __name__ == '__main__':
            proc = []
            for fn in fns:
                p = threading.Thread(target=fn, args=(array_values,))
                p.start()
                proc.append(p)
            for p in proc:
                p.join()
        z += 1


runInParallel(a, b)
print(array_values)

CURRENT OUTPUT OF CODE

['a', 'b', 'a', 'b', 'a', 'b', 'a', 'b', 'a', 'b', 'a', 'b']

The goal however is to get the program to run both so that while function b has the long wait time of 5 seconds, function a is running and only sleeping 1 second.

DESIRED OUTPUT

['a', 'a', 'a', 'a', 'b', 'a', 'a', 'a', 'a', 'b', 'a', 'a'.....so on]

I have also tried multiprocessing but learned that it doesn't used shared memory making it not right to the same list, any help is awesome! Thanks!

Answer 1

import threading
import time

array_values = []


def a(array):
    time.sleep(1)
    array.append('a')


def b(array):
    time.sleep(5)
    array.append('b')


def runInParallel(*fns):
    z = 0
    while z < 6:
        if __name__ == '__main__':
            proc = []
            for fn in fns:
                p = threading.Thread(target=fn, args=(array_values,))
                p.start()
                proc.append(p)
            for p in proc:
                p.join()
        z += 1


runInParallel(a, b)
print(array_values)

CURRENT OUTPUT OF CODE

['a', 'b', 'a', 'b', 'a', 'b', 'a', 'b', 'a', 'b', 'a', 'b']

The goal however is to get the program to run both so that while function b has the long wait time of 5 seconds, function a is running and only sleeping 1 second.

DESIRED OUTPUT

['a', 'a', 'a', 'a', 'b', 'a', 'a', 'a', 'a', 'b', 'a', 'a'.....so on]

I have also tried multiprocessing but learned that it doesn't used shared memory making it not right to the same list, any help is awesome! Thanks!