(self, x, random=None, int=int)
x, random=random.random -> shuffle list x in place; return None.

        Optional arg random is a 0-argument function returning a random
        float in [0.0, 1.0); by default, the standard random.random.
x, random=random.random -> shuffle list x in place; return None.
x random = random . random - > shuffle list x in place ; return None .
def shuffle(self, x, random=None, int=int):
        """x, random=random.random -> shuffle list x in place; return None.

        Optional arg random is a 0-argument function returning a random
        float in [0.0, 1.0); by default, the standard random.random.
        """

        randbelow = self._randbelow
        for i in reversed(range(1, len(x))):
            # pick an element in x[:i+1] with which to exchange x[i]
            j = randbelow(i+1) if random is None else int(random() * (i+1))
            x[i], x[j] = x[j], x[i]
def shuffle ( self , x , random = None , int = int ) : randbelow = self . _randbelow for i in reversed ( range ( 1 , len ( x ) ) ) : # pick an element in x[:i+1] with which to exchange x[i] j = randbelow ( i + 1 ) if random is None else int ( random ( ) * ( i + 1 ) ) x [ i ] , x [ j ] = x [ j ] , x [ i ]