class HTTPStatus:
    ...

    @property
    def is_informational(self):
        return 100 <= self < 200

    @property
    def is_success(self):
        return 200 <= self < 300

    @property
    def is_redirection(self):
        return 300 <= self < 400

    @property
    def is_client_error(self):
        return 400 <= self < 500

    @property
    def is_server_error(self):
        return 500 <= self < 600

if 200 <= status < 300:
    handle_response(response)
elif 300 <= status < 400:
    handle_redirect(response)
elif 400 <= status < 500:
    raise ClientError(status)
elif 500 <= status < 600:
    maybe_retry(response.request)

if status.is_success:
    handle_response(response)
elif status.is_redirection:
    handle_redirect(response)
elif status.is_client_error:
    raise ClientError(status)
elif status.is_server_error:
    maybe_retry(response.request)