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GetLowestPricedOffers #3876

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commented Jul 16, 2019

I am attempting to add the GetLowestPricedOffers operation to boto. I have tried for quite some time now yet i cannot get it to work. Any idea what I am doing wrong? Below is a sample xml response from mws scratchpad, below that is my added code (highlighted code).






Here is the error I am getting

File "C:/Users/Colby/PycharmProjects/amazon/", line 40, in
asin = mws.get_lowest_priced_offers_for_asin(MarketplaceId=marketplaceId, ASIN='B012U5263G', ItemCondition='New')
File "C:\Users\Colby\PycharmProjects\amazon\venv\lib\site-packages\boto\mws\", line 167, in requires
return func(*args, **kw)
File "C:\Users\Colby\PycharmProjects\amazon\venv\lib\site-packages\boto\mws\", line 261, in wrapper
return func(self, request, response, *args, **kw)
File "C:\Users\Colby\PycharmProjects\amazon\venv\lib\site-packages\boto\mws\", line 848, in get_lowest_priced_offers_for_asin
return self._post_request(request, kw, response)
File "C:\Users\Colby\PycharmProjects\amazon\venv\lib\site-packages\boto\mws\", line 332, in _post_request
response.reason, body)
File "C:\Users\Colby\PycharmProjects\amazon\venv\lib\site-packages\boto\mws\", line 29, in call
supplied = self.find_element(server.error_code, '', ResponseError)
File "C:\Users\Colby\PycharmProjects\amazon\venv\lib\site-packages\boto\mws\", line 154, in find_element
element = self.search_scopes(action + suffix)
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'


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commented on 836ba65 Feb 4, 2012

Awesome start and a very impressive night's work! I think the next thing to look at is request signing. Right now boto has a pluggable authentication mechanism to sign requests in various ways depending on the requirements of the service. It is my understanding that requests also has a pluggable authentication mechanism. We shouldn't need to have two. I'm going to try to find some time this weekend to investigate this.

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replied Feb 5, 2012

Good deal. I'll probably be trying to restore more S3 functionality. If you get a chance, maybe you could see what's wrong with DynamoDB. It has something to do with the session keys and the response headers and requests.

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replied Feb 5, 2012

I'm getting a hang when I try to call get_contents_as_string for a Key object. Are you seeing that?

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