gevent example

gistfile1.py

import gevent
from gevent import monkey
#patches stdlib (including socket and ssl modules) to cooperate with other greenlets
monkey.patch_all()

import urllib2

urls=['http://baidu.com','http://cqu.edu.cn','http://www.python.org']

def print_head(url):
  print 'Starting %s' %url
  data=urllib2.urlopen(url).read()
  print '%s: %s bytes: %r' %(url,len(data),data[:50])
  
jobs=[gevent.spawn(print_head,url) for url in urls]

gevent.joinall(jobs)