#!/usr/bin/env python

# coding=utf-8

"""

compute Fibonacci by iterator

"""

__metaclass__ = type

class Fibs:

def __init__(self, max):

self.max = max

self.a = 0

self.b = 1

def __iter__(self):

return self

def next(self):

fib = self.a

if fib > self.max:

raise StopIteration

self.a, self.b = self.b, self.a + self.b

return fib

if __name__ == "__main__":

fibs = Fibs(5)

print list(fibs)