如何在Python中捕获此特定异常 - amazon.api

Question

我正在使用的API:https://pypi.python.org/pypi/python-amazon-simple-product-api

我有我的部分代码

from amazon.api import AmazonAPI
products = self.amazon_api.search_n(1, Keywords=item['upc'], SearchIndex='All')

我得到的例外

SearchException: Amazon Search Error: 'AWS.ECommerceService.NoExactMatches', 'We did not find any matches for your request.'

我试着像这样抓住它

try:
    products = self.amazon_api.search_n(1, Keywords=item['upc'], SearchIndex='All')
    found_match = True
except SearchException:
    logging.warning("No search result found on Amazon for UPC: %s"%(item['upc']))
    found_match = False

但是我得到了

NameError: global name 'SearchException' is not defined

然后我在脚本的开头做了这个

from AWS.ECommerceService.NoExactMatches import SearchException

但后来我得到了这个错误

ImportError: No module named AWS.ECommerceService.NoExactMatches

我的问题是我如何默默地捕获这个特定的SearchException例外？

Answer 1

试试这个:

from amazon.api import AmazonAPI, SearchException

之后,

try:
    products = self.amazon_api.search_n(1, Keywords=item['upc'], SearchIndex='All')
    found_match = True
except SearchException:
    logging.warning("No search result found on Amazon for UPC: %s"%(item['upc']))
    found_match = False

应该按预期工作.

可以在这里找到文档.