Python2 - iterator

#! python2

class Counter(object):

    def __init__(self, low, high):
        self.current = low
        self.high = high

    def __iter__(self):
        'Returns itself as an iterator object'
        return self

    def next(self):
        'Returns the next value till current is lower than high'
        if self.current > self.high:
            raise StopIteration
        else:
            self.current += 1
            return self.current - 1

n = 1000
#n = 10 # easier to check result

i = Counter(0, n)
for v in i:
    print(v)

#------------------------------------------

print('----------------------')

i = Counter(0, n)

print(next(i)) # 0
print(next(i)) # 1
print(next(i)) # 2
#etc.