regroup list by n elements

def regroup(l, n):
    """ Regroup list l by tuples of n elements
    
    >>> list(regroup([1,2,3,4,5,6,'EVIL_VALUE'], 3))
    [[1, 2, 3], [4, 5, 6], ['EVIL_VALUE']]
    """
    for i in xrange(0,len(l), n): yield l[i:i+n]