Python进程、线程、协程详解(10)

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Python进程、线程、协程详解(10)

2、gevent

gevent属于第三方模块需要下载安装包

1 2	`pip3` `install` `--upgrade pip3` `pip3` `install` `gevent`

						import gevent

						def fun1():

						    print("www.baidu.com")   # 第一步

						    gevent.sleep(0)

						    print("end the baidu.com")  # 第三步

						def fun2():

						    print("www.zhihu.com")   # 第二步

						    gevent.sleep(0)

						    print("end th zhihu.com")  # 第四步

						gevent.joinall([

						    gevent.spawn(fun1),

						    gevent.spawn(fun2),

						])

遇到IO操作自动切换：

						import gevent

						import requests

						def func(url):

						    print("get: %s"%url)

						    gevent.sleep(0)

						    date =requests.get(url)

						    ret = date.text

						    print(url,len(ret))

						gevent.joinall([

						    gevent.spawn(func, 'https://www.pythontab.com/'),

						    gevent.spawn(func, 'https://www.yahoo.com/'),

						    gevent.spawn(func, 'https://github.com/'),

						])

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