Where to store a variable that should be available to all threads?

Question

Python

I have a variable queue = Queue()
Is it possible to store it so that all threads have access to it as the same object, but not pass this queue as an argument.

Answer 1

from threading import Thread
from queue import Queue, Empty
from time import sleep

q = Queue()

def f():
    while True:
        try:
            item = q.get_nowait()
        except Empty:
            return
        else:
            print(item**2)
            sleep(5)


if __name__ == '__main__':
    threads = [Thread(target=f) for _ in range(10)]
    for i in range(100):
        q.put(i)
    for t in threads:
        t.start()

Here is an example of how not to pass a queue to a function. It's just that the function should have a queue in the scope. But it's better to pass, because the explicit is better than the implicit.