関連ワード:  python get all permutations of list    python generate all permutations of list    python get all permutations of multiple lists    python get all permutations of two lists    python get every permutation of a list    python get all unique permutations of a list    python all permutations of list    python get permutations of list    python generate permutations of list    python program to generate all permutations of a list