tornado example

tornadofetch.py

from tornado import ioloop
from tornado.httpclient import AsyncHttpClient

urls=['http://www.google.com/','http://baidu.com']

def print_head(response):
    print '%s: %s bytes: %r' %(response.request.url,len(response.body),response.body[:50])

http_client=AsyncHTTPClient()

for url in urls:
  print 'Starting %s' % url
  http_client.fetch(url,print_head)

ioloop.IOLoop.instance().start()