request.py 文件源码

def retrieve(self, url, timeout=None):
        """Retrieve the contents of a file by its URL.

        Args:
            url (str): The web location we want to retrieve.
            timeout (Optional[int|float]): If this value is specified, use it as the read timeout
                from the server (instead of the one specified during creation of the connection
                pool).

        """
        urlopen_kwargs = {}
        if timeout is not None:
            urlopen_kwargs['timeout'] = Timeout(read=timeout, connect=self._connect_timeout)

        return self._request_wrapper('GET', url, **urlopen_kwargs)