learn-python3/samples/advance/do_generator.py at master · pythonfei/learn-python3 · GitHub

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#!/usr/bin/env python3

# -*- coding: utf-8 -*-

s = (x * x for x in range(5))

print(s)

for x in s:

print(x)

def fib(max):

n, a, b = 0, 0, 1

while n < max:

yield b

a, b = b, a + b

n = n + 1

return 'done'

f = fib(10)

print('fib(10):', f)

for x in f:

print(x)

# call generator manually:

g = fib(5)

while 1:

try:

x = next(g)

print('g:', x)

except StopIteration as e:

print('Generator return value:', e.value)

break