Perfect Number

#!/usr/bin/python
# -*- coding: utf-8 -*-
def is_perfect(n):
    if n < 2:
        return False
    measure = []
    for i in xrange(1, n / 2 + 1):
        if n % i == 0:
            measure.append(i)
    return n == sum(measure)

if __name__ == "__main__":
    for i in range(0, 1000):
        if is_perfect(i):
            print i