如何获得的价格优惠清单上的项目从亚马逊与Python，亚马逊产品的API item_lookup功能？ [英] How to get the list of price offers on an item from Amazon with python-amazon-product-api item_lookup function?

问题描述

我试图写一个函数来获取优惠（其价格）的基础上，ASIN的项目清单：

 高清price_offers（ASIN）：
    从amazonproduct进口API，ResultPaginator，AWSError
    从配置进口AWS_KEY，SECRET_KEY
    API = API（AWS_KEY，SECRET_KEY，'德'）
    str_asin = STR（ASIN）
    节点= api.item_lookup（ID = str_asin，ResponseGroup ='娱乐'，条件='所有'，MerchantId ='所有'）
    对于在节点：
        打印a.Offer.OfferListing.Price.FormattedPrice
 

我读 的http://docs.amazonwebservices.com/AWSECommerceService/latest/DG/index.html?ItemLookup.html并试图使这项工作，但所有的时间它只是说：

 故障实例：回溯：＆LT;键入'exceptions.AttributeError'计算值：没有这样的孩子：{http://webservices.amazon.com/AWSECommerceService/2009-10-01 }提供
 

解决方案

好像有在你的回应中没有报价的元素。尝试

 节点= api.item_lookup（...）
从LXML进口etree
打印etree.tostring（节点，pretty_print = TRUE）
 

要看到返回的XML的样子。

I am trying to write a function to get a list of offers (their prices) for an item based on the ASIN:

def price_offers(asin):
    from amazonproduct import API, ResultPaginator, AWSError
    from config import AWS_KEY, SECRET_KEY
    api = API(AWS_KEY, SECRET_KEY, 'de')
    str_asin = str(asin)
    node = api.item_lookup(id=str_asin, ResponseGroup='Offers', Condition='All', MerchantId='All')
    for a in node:
        print a.Offer.OfferListing.Price.FormattedPrice

I am reading http://docs.amazonwebservices.com/AWSECommerceService/latest/DG/index.html?ItemLookup.html and trying to make this work, but all the time it just says:

Failure instance: Traceback: <type 'exceptions.AttributeError'>: no such child: {http://webservices.amazon.com/AWSECommerceService/2009-10-01}Offer

解决方案

Seems like there is no Offer element in your response. Try

node = api.item_lookup(...)
from lxml import etree
print etree.tostring(node, pretty_print=True)

to see how the returned XML looks like.

这篇关于如何获得的价格优惠清单上的项目从亚马逊与Python，亚马逊产品的API item_lookup功能？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！