def handle_response_status(self, response):
if <NUM_LIT> <= response.status_code <= <NUM_LIT>:<EOL><INDENT>raise ConstantContactAPIError(response)<EOL><DEDENT>response.raise_for_status()<EOL>
Raise an exception for response errors.

        Constant Contact returns some nice error info that we lose if
        we only response.raise_for_status(). So we trap most errors
        and raise exceptions that preserve the error info.

        Calling raise_for_status() catches any other errors.