进程池和线程池、协程

import threadpool,threading
import time,os
def sayhello (a):
    print("%shello:%s "%(threading.Thread(),a))
    time.sleep(2)



if __name__ == '__main__':
    global result
    seed = ["a"]
    task_pool=threadpool.ThreadPool(2)#创建线程池
    #p=Process()创建进程池
    #p.apply(func,args.kwargs) 执行进程
    #p.close()   p.jion()
    requests = threadpool.makeRequests(sayhello,seed)#创建任务 makeRequests(func,args,kwargs)
    for request in requests:
        task_pool.putRequest(request)#把任务put到线程池中

    task_pool.wait()#执行等待线程池中的线程执行完毕

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协程

import gevent,os,requests

def func1(url):
   data  = requests.get(url)
   print(data.text)

gevent.joinall([ #开启轮询
    gevent.spawn(func1,"http://www.baidu.com"), #注册函数对象并执行函数
    gevent.spawn(func1,"https://github.com/")
])