random.choice in Python 2.X vs 3.X

py27.py

def choice(self, seq):
    """Choose a random element from a non-empty sequence.""" 
    return seq[int(self.random() * len(seq))]  # raises IndexError 

py33.py

def choice(self, seq): 
    """Choose a random element from a non-empty sequence.""" 
    try: 
        i = self._randbelow(len(seq)) 
    except ValueError: 
        raise IndexError('Cannot choose from an empty sequence') 
    return seq[i]