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