first python code from me

gistfile1.py

def _extend_list(numbers, size):
    copy = numbers[:]
    current_size = len(copy)
    for i in range(current_size, size):
        copy.append(0)
    return copy

class Version:
    def __init__(self, string):
        tokens = string.split('.')
        self.numbers = [int(t) for t in tokens]

    def __str__(self):
        return '.'.join([str(i) for i in self.numbers])

    def __repr__(self):
        return self.__str__()

    def __cmp__(self, other):
        lhs = _extend_list(self.numbers, len(other.numbers))
        rhs = _extend_list(other.numbers, len(self.numbers))
        for l,r in zip(lhs, rhs):
            if l > r:
                return 1
            elif r < l:
                return -1
        return 0