[python] swagger responses versus API behavior

my swagger.json has:

"responses" : {
    "200" : {},
    "400": {}
}

but the python API ( https://github.com/swagger-api/swagger-codegen/blob/master/modules/swagger-codegen/src/main/resources/python/rest.mustache#L176 ) has:

        if r.status not in range(200, 206):
            raise ApiException(http_resp=r)

which means that when a web service returns a 400, the machinery in the generated client code that converts the JSON response in the body into the swagger-generated response object never happens.

Now maybe the idea is that the caller is supposed to catch ApiException and examine self.status for a 400 error, but then how is the http response body supposed to be converted into the schema specified in the "400" section of the swagger file?

I have also looked at the Java client ( https://github.com/swagger-api/swagger-codegen/blob/master/samples/client/petstore/java/default/src/main/java/io/swagger/client/ApiClient.java#L525 ) and it also doesn't do the right thing with any http-reponse-code outside of a 2xx

some clarification one how exactly the non-200 responses should be handled would be useful.

The issue points to modules/swagger-codegen/src/main/resources/python/rest.mustache#L176 and samples/client/petstore/java/default/src/main/java/io/swagger/client/ApiClient.java#L525; start by comparing their non-2xx response handling with the declared Swagger responses. Done means the expected treatment of a documented 400 response, including its body and schema conversion, is established and reflected consistently or documented.