def _get_error_response(self, exception):
        """
        Trasform pyston exceptions to Is-core exceptions and raise it
        """
        response_exceptions = {
            MimerDataException: HTTPBadRequestResponseException,
            NotAllowedException: HTTPForbiddenResponseException,
            UnsupportedMediaTypeException: HTTPUnsupportedMediaTypeResponseException,
            Http404: Http404,
            ResourceNotFoundException: Http404,
            NotAllowedMethodException: HTTPMethodNotAllowedResponseException,
            DuplicateEntryException: HTTPDuplicateResponseException,
            ConflictException: HTTPDuplicateResponseException,
        }
        response_exception = response_exceptions.get(type(exception))
        if response_exception:
            raise response_exception
        return super(RESTResourceMixin, self)._get_error_response(exception)