How to make a randomly generated Python Variable from a list and keep its value across functions [duplicate]

I have a function test1() and in this function, there is a variable w which is a randomly generated element from a list l. I want to use the value of w in another function test2, but keep the value it generated in test1. my current code is:

import random
def test1 ():
    l = [1,2,3]
    w = random.choice(l)
    print(w)


def test2 ():
    w = test1()
    print(w)


test1()
test2()

with the current code, I get two different values for the variable w, I want its value to be randomly generated once, then be able to use that value across different functions.