Shuffle giving same order [duplicate]

When I shuffle several sublists they come out in the same order. I'm sure I can reseed it with a random number each time, but everything I read implies that I shouldn't have to.
Code:

test=[list(range(10))]*5
import random
for x in test:
    random.shuffle(x)

print(test)

Results:

[[0, 8, 9, 6, 1, 2, 7, 4, 5, 3], [0, 8, 9, 6, 1, 2, 7, 4, 5, 3], [0, 8, 9, 6, 1, 2, 7, 4, 5, 3], [0, 8, 9, 6, 1, 2, 7, 4, 5, 3], [0, 8, 9, 6, 1, 2, 7, 4, 5, 3]]

Why isn't shuffle producing different orders?