from itertools import combinations items = [1,2,3,4] combinations(items, 3) #3개의 요소 모든 조합 #[1,2,3], [1,2,4], [1,3,4], [2,3,4]
from itertools import permutations items = [1,2,3,4] permutations(items, 3) #순서 상관O #[1,2,3] != [2,3,1]