Function shuffle

recipes/Python/578466_Shuffle/recipe-578466.py:4–10

(cards)

import unittest

def shuffle(cards):
    max = len(cards)-1
    while max != 0:
        r = random.randint(0, max)
        cards[r], cards[max] = cards[max], cards[r]
        max = max - 1
    return cards

class TestCase(unittest.TestCase):
    def setUp(self):