import urllib2
import cookielib
url = "http://wwww.baidu.com"
response = urllib2.urlopen(url)
print str(response.getcode()) + " "+ str(len(response.read()))
requset = urllib2.Request(url)
requset.add_header("user-agent","Mozilla/5.0")
response = urllib2.urlopen(requset)
print str(response.getcode()) + " "+ str(len(response.read()))
CKJR = cookielib.CookieJar()
HCKP = urllib2.HTTPCookieProcessor(CKJR )
OPENER = urllib2.build_opener(HCKP)
urllib2.install_opener(OPENER)
response = urllib2.urlopen(url)
print str(response.getcode()) + " "+ str(len(response.read()))
print CKJR