Issue with Botocore and Personalize API Calls

The botocore API fails to properly allow for users to communicate with the Personalize service. Originally I thought this was an issue related to my local Python environment so I created a clean install of MacOS and reproduced.

Meta Information

(personalize) ➜  ~ pip freeze | grep boto
boto3==1.9.248
botocore==1.12.248
(personalize) ➜  ~ python --version
Python 3.7.3

Steps to Reproduce Error:

1. Install versions of libraries listed above
2. Execute the following:

ipython
import boto3
personalize = boto3.client('personalize')
personalize.list_schemas()

Output:

personalize.list_schemas()
---------------------------------------------------------------------------
ClientError                               Traceback (most recent call last)
<ipython-input-3-4bf9284f94ae> in <module>
----> 1 personalize.list_schemas()

~/personalize/lib/python3.7/site-packages/botocore/client.py in _api_call(self, *args, **kwargs)
    355                     "%s() only accepts keyword arguments." % py_operation_name)
    356             # The "self" in this scope is referring to the BaseClient.
--> 357             return self._make_api_call(operation_name, kwargs)
    358
    359         _api_call.__name__ = str(py_operation_name)

~/personalize/lib/python3.7/site-packages/botocore/client.py in _make_api_call(self, operation_name, api_params)
    659             error_code = parsed_response.get("Error", {}).get("Code")
    660             error_class = self.exceptions.from_code(error_code)
--> 661             raise error_class(parsed_response, operation_name)
    662         else:
    663             return parsed_response

ClientError: An error occurred (UnknownOperationException) when calling the ListSchemas operation:

This was reported a while back with Forecast as well. I have yet to figure out exactly which versions would be good of botocore.

[chrisking]

Thank you @swetashre !

Step to resolve:

rm -rf ~/.aws/models

It looks like there was an out of date bit of info there. When I restored my credentials by copying over my old AWS folder it corrupted the new env.

[swetashre]

@chrisking - Thanks for providing the debug log. It looks like when boto3 is making request for operational model the target header is wrong. In your case it is'X-Amz-Target': 'AWSConciergeControlService.ListSchemas' but it should be 'X-Amz-Target': 'AmazonPersonalize.ListSchemas' .

Please make sure that the targetPrefix value should be AmazonPersonalize in the /Users/chris/.aws/models/personalize/2018-05-22/service-2.json file like this "targetPrefix":"AmazonPersonalize".

Hope it helps and please let me know if you have any questions.