#!/usr/bin/env python
# -*- coding: utf-8 -*-import asyncio
import time
import random'''
def old_fib(n):res = [0] * nindex = 0a = 0b = 1while index < n:res[index] = ba, b = b, a + bindex += 1return resprint("-"*10 + "test old fib " + "-"*10)
for fib_res in old_fib(20):print(fib_res)def fib(n):index = 0a = 0b = 1while index < n:yield ba, b = b, a + bindex += 1print("-"*10 + "test yield fib " + "-"*10)
for fib_res in fib(20):print(fib_res)def stupid_fib(n):index = 0a = 0b = 1while index < n:sleep_cnt = yield bprint("let me think {0} secs".format(sleep_cnt))time.sleep(sleep_cnt)a, b = b, a + bindex += 1
print("-"*10 + "test yield send " + "-"*10)
N = 20
sfib = stupid_fib(N)
fib_res = next(sfib)
while True:print(fib_res)try:fib_res = sfib.send(random.uniform(0, 0.5))except StopIteration:breakdef copy_fib(n):print("I am copy from fib")yield from fib(n)print("copy end")
print("-"*10 + "test yield from " + "-"*10)
for fib_res in copy_fib(20):print(fib_res)def copy_stupid_fib(n):print("I am copy from stupid fib")yield from stupid_fib(n)print("Copy end")print("-"*10 + "test yield from and send" + "-"*10)
N = 20
csfib = copy_stupid_fib(N)
fib_res = next(csfib)
while True:print(fib_res)try:fib_res = csfib.send(random.uniform(0, 0.5))except StopIteration:break@asyncio.coroutine
def smart_fib(n):index = 0a = 0b = 1while index < n:sleep_secs = random.uniform(0, 0.2)yield from asyncio.sleep(sleep_secs)print("Smart one think {} secs to get {}".format(sleep_secs, b))a, b = b, a + bindex += 1@asyncio.coroutine
def stupid_fib(n):index = 0a = 0b = 1while index < n:sleep_secs = random.uniform(0, 0.4)yield from asyncio.sleep(sleep_secs)print("Stupid one think {} secs to get {}".format(sleep_secs, b))a, b = b, a + bindex += 1loop = asyncio.get_event_loop()
tasks = [asyncio.async(smart_fib(10)),asyncio.async(stupid_fib(10)),]
loop.run_until_complete(async.wait(tasks))
print("All fib finished.")
loop.close()'''async def smart_fib(n):index = 0a = 0b = 1while index < n:sleep_secs = random.uniform(0, 0.2)await asyncio.sleep(sleep_secs)print("Smart one think {} secs to get {}".format(sleep_secs, b))a, b = b, a + bindex += 1async def stupid_fib(n):index = 0a = 0b = 1while index < n:sleep_secs = random.uniform(0, 0.4)await asyncio.sleep(sleep_secs)print("Stupid one think {} secs to get {}".format(sleep_secs, b))a, b = b, a + bindex += 1loop = asyncio.get_event_loop()
tasks = [asyncio.async(smart_fib(10)),asyncio.async(stupid_fib(10)),]
loop.run_until_complete(asyncio.wait(tasks))
print("All fib finished.")
loop.close()