How to find all possible sequences of elements in a list?

Question

I have a list [2,3,4]. How do I find all possible sequence of elements in the list? So the output should be: [2,3,4] [2,4,3] [3,2,4] [3,4,2] [4,2,3] [4,3,2]

Answer 1

You can do this easily using itertools.permutations():

>>> from itertools import permutations
>>> list(permutations([2, 3, 4]))
[(2, 3, 4), (2, 4, 3), (3, 2, 4), (3, 4, 2), (4, 2, 3), (4, 3, 2)]

And if for some reason you need lists instead of tuples:

>>> map(list, permutations([2, 3, 4]))
[[2, 3, 4], [2, 4, 3], [3, 2, 4], [3, 4, 2], [4, 2, 3], [4, 3, 2]]

Answer 2

You are looking for permutations, something like this should work:

import itertools
itertools.permutations([2,3,4])