Simple queue

import time, random, queue, threading

url_list = queue.Queue()
urls = [
    "google.com",
    "facebook.com",
    "tritter.com",
    "instagram.com",
    "gmail.com",
    "youtube.com",
]

for i in urls:
    url_list.put(i)

def queue_worker():
    print(threading.current_thread().name)

    while not url_list.empty():
        current_url = url_list.get()
        print("working on:", current_url)

        time.sleep(random.randint(2,10))

        print("Work done!", current_url)

        url_list.task_done()

t1 = threading.Thread(target=queue_worker)
t2 = threading.Thread(target=queue_worker)
t3 = threading.Thread(target=queue_worker)
t4 = threading.Thread(target=queue_worker)

t1.start()
t2.start()
t3.start()
t4.start()

url_list.join()
print("Main Thread ends")