connection.py 文件源码

def _requests_retry_session(
        self,
        retries=3,
        backoff_factor=0.3,
        method_whitelist=['HEAD', 'GET', 'POST', 'PUT', 'DELETE', 'OPTIONS', 'TRACE'],
        status_forcelist=(500, 502, 503, 504, 520, 524),
        session=None,
    ):
        session = session or requests.Session()
        retry = Retry(
            total=retries,
            read=retries,
            connect=retries,
            status=retries,
            method_whitelist=method_whitelist,
            backoff_factor=backoff_factor,
            status_forcelist=status_forcelist,
        )
        adapter = HTTPAdapter(max_retries=retry)
        session.mount('http://', adapter)
        session.mount('https://', adapter)
        return session