淘宝开发平台 Python SDK 遇到问题，请前辈指导 详情有有代码有截图

python 调用淘宝 SDK 示例代码一直显示 Name or service not known

不知道问题出在哪里




如果用官方示例，出现下面的错误提示

# -*- coding: utf-8 -*-
import top.api

req=top.api.TbkItemGetRequest(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,seller_id,volume,nick"
req.q="女装"
req.cat="16,18"
req.itemloc="杭州"
req.sort="tk_rate_des"
req.is_tmall=false
req.is_overseas=false
req.start_price=10
req.end_price=10
req.start_tk_rate=123
req.end_tk_rate=123
req.platform=1
req.page_no=123
req.page_size=20
try:
resp= req.getResponse()
print(resp)
except Exception,e:
print(e)