Python - permutation

#!/usr/bin/env python3

from itertools import permutations

#help(itertools.permutations)

# digits = [9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
#digits = list(reversed(range(10)))
digits = list(range(9, -1, -1))

for length in range(10, 0, -1):
    for x in permutations(digits, length):
        print(x)

# (9, 8, 7, 6, 5, 4, 3, 2, 1, 0)  # length 10
# (9, 8, 7, 6, 5, 4, 3, 2, 0, 1)  # length 10
# (9, 8, 7, 6, 5, 4, 3, 1, 2, 0)  # length 10
# (9, 8, 7, 6, 5, 4, 3, 1, 0, 2)  # length 10
# ... etc. ...
# (3,)  # length 1
# (2,)  # length 1
# (1,)  # length 1

#--------------------------------