# -*- coding: utf-8 -*-

import random

lst = [1, 2, 3]
ret = random.sample(lst, 2)
print(ret)
# [3, 2]

# -*- coding: utf-8 -*-

import random

lst = [1, 2, 3]
ret = random.sample(lst, 4)
print(ret)
# ValueError: Sample larger than population or is negative