如何用Python调用淘宝api？【新手疑问】

Question

在以下请求示例，TbkItemInfoGetRequest(url,port) 里的 url 和 port 要如何填写？

import top.api

req=top.api.TbkItemInfoGetRequest(url,port)
req.set_app_info(top.appinfo(appkey,secret))

req.fields="num_iid,title,pict_url,small_images,reserve_price,zk_final_price,user_type,provcity,item_url"
req.platform=1
req.num_iids="123,456"
try:

resp= req.getResponse()
print(resp)

except Exception,e:

print(e)