Tornado AsyncHTTPClient

gistfile1.py

# coding: utf-8

import tornado.ioloop
import tornado.web
import tornado.httpclient
import tornado.autoreload

def handler_request(response):
    if response.error:
        print response.error
    else:
        if response.code == 200:
            print len(response.body)
        if response.code == 404:
            print '404', response.request.url
        elif response.code == 500:
            print '500', response.request.url

client = tornado.httpclient.AsyncHTTPClient()

for url in ['http://vk.com/id%d' % i for i in range(1000)]:
    client.fetch(url, handler_request)

#class MainHandler(tornado.web.RequestHandler):
    #def get(self):
        #self.write("Hello, world")

if __name__ == '__main__':
    #application = tornado.web.Application([
        #(r"/", MainHandler),
    #])
    #application.listen(port = 5000)
    tornado.autoreload.start(io_loop=None, check_time=500)
    tornado.ioloop.IOLoop.instance().start()