Shuffle items in place using Sattolo's algorithm.

def shuffle_sattolo(items):
    """Shuffle items in place using Sattolo's algorithm."""
    _randrange = random.randrange
    for i in reversed(range(1, len(items))):
        j = _randrange(i)  # 0 <= j < i
        items[j], items[i] = items[i], items[j]