nntplib.py 文件源码

def __init__(self, host, port=NNTP_PORT, user=None, password=None,
                 readermode=None, usenetrc=False,
                 timeout=_GLOBAL_DEFAULT_TIMEOUT):
        """Initialize an instance.  Arguments:
        - host: hostname to connect to
        - port: port to connect to (default the standard NNTP port)
        - user: username to authenticate with
        - password: password to use with username
        - readermode: if true, send 'mode reader' command after
                      connecting.
        - usenetrc: allow loading username and password from ~/.netrc file
                    if not specified explicitly
        - timeout: timeout (in seconds) used for socket connections

        readermode is sometimes necessary if you are connecting to an
        NNTP server on the local machine and intend to call
        reader-specific commands, such as `group'.  If you get
        unexpected NNTPPermanentErrors, you might need to set
        readermode.
        """
        self.host = host
        self.port = port
        self.sock = socket.create_connection((host, port), timeout)
        file = self.sock.makefile("rwb")
        _NNTPBase.__init__(self, file, host,
                           readermode, timeout)
        if user or usenetrc:
            self.login(user, password, usenetrc)