repeat
第一个列表,permutate
第二和zip
它一起
>>> from itertools import permutations, repeat
>>> a = [1, 2, 3]
>>> b = [4, 5, 6]
>>> list(list(zip(r, p)) for (r, p) in zip(repeat(a), permutations(b)))
[[(1, 4), (2, 5), (3, 6)],
[(1, 4), (2, 6), (3, 5)],
[(1, 5), (2, 4), (3, 6)],
[(1, 5), (2, 6), (3, 4)],
[(1, 6), (2, 4), (3, 5)],
[(1, 6), (2, 5), (3, 4)]]
:正如彼得·奥滕(Peter Otten)所指出的,内部zip
和repeat
都是多余的。
[list(zip(a, p)) for p in permutations(b)]