requests.py 文件源码

def __init__(self, timeout=None, retries=None):
        super(Session, self).__init__()
        self.timeout = timeout
        if retries is None:
            retry = Retry(**DEFAULT_RETRY_ARGS)
        elif isinstance(retries, int):
            args = DEFAULT_RETRY_ARGS.copy()
            args.pop('total', None)
            retry = Retry(total=retries, **args)
        elif isinstance(retries, dict):
            retry = Retry(**retries)
        self.mount('http://', HTTPAdapter(max_retries=retry))
        self.mount('https://', HTTPAdapter(max_retries=retry))