淘宝官方有获取商品推广链接的API，但该API属于增值API 普通开发者没有调用权限 需要申请开通

备注：登陆采用的是阿里妈妈账号登陆非淘宝账号登陆

复制代码 代码如下:

coding:utf-8

author = 'liukoo'
import urllib,urllib2,cookielib,re
from hashlib import md5
class alimama:
def init(self):
self.header = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.95 Safari/537.36'}

cookie 支持

    self.cookie_handle = cookielib.CookieJar()  
    self.opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(self.cookie_handle))  
    urllib2.install_opener(self.opener)  
#登陆  
def login(self,username,passwd):  
    login_data = {  
        'logname':'',  
        'originalLogpasswd':'',  
        'logpasswd':'',  
        'proxy':'',  
        'redirect':'',  
        'style':''  
    }  
    login_data['logname'] =username  
    login_data['originalLogpasswd'] =passwd  
    login_data['logpasswd'] = md5(login_data['originalLogpasswd']).hexdigest()  
    source = urllib2.urlopen('http://www.alimama.com/member/minilogin.htm').read()  
    token_list = re.findall(r"input name='_tb_token_' type='hidden' value='([a-zA-Z0-9]+)'", source)  
    login_data['_tb_token_'] = token_list[0] if token_list else ''  
    loginurl = 'https://www.alimama.com/member/minilogin_act.htm'  
    #拼接post数据  
    login_data = urllib.urlencode(login_data)  
    self.header['Referer'] = 'http://www.alimama.com/member/minilogin.htm'  
    try:  
        req = urllib2.Request(url=loginurl,data=login_data,headers=self.header)  
        resp =urllib2.urlopen(req)  
        html = resp.read()  
        if str(resp.url).find('success')!=-1:  
            return True  
    except Exception,e:  
        print e  
        return False  
#获取商品的推广链接  
def getUrl(self,url):  
    try:  
        item_id = re.search(r"id=(\d+)",url)  
        item_id = item_id.group(1)  
        html = urllib2.urlopen('http://u.alimama.com/union/spread/common/allCode.htm?specialType=item&auction;_id='+item_id).read()  
        rule = re.compile(r"var clickUrl = \'([^\']+)")  
        return rule.search(html).group(1)  
    except Exception,e:  
        print e  
        return False

example

ali = alimama()

if ali.login('admin@liuko.com','xxxxxx'):

url = ali.getUrl('http://item.taobao.com/item.htm?spm=a1z10.1.w4004-1205618817.6.Evkf6O&id;=19322457214')

if url:

print url

else:

print '获取推广链接失败'

else:

print '登陆失败'