python通过post提交数据的方法

# -*- coding: cp936 -*-
import urllib2
import urllib
def postHttp(name=None,tel=None,address=None,
       price=None,num=None,paytype=None,
       posttype=None,other=None):
  url="http://www.xxx.com/dog.php"
  #定义要提交的数据
  postdata=dict(name=name,tel=tel,address=address,price=price,
         num=num,paytype=paytype,posttype=posttype,other=other)
  #url编码
  postdata=urllib.urlencode(postdata)
  #enable cookie
  request = urllib2.Request(url,postdata)
  response=urllib2.urlopen(request)
  print response