rfc2217.py 文件源码

def write(self, data):
        """\
        Output the given byte string over the serial port. Can block if the
        connection is blocked. May raise SerialException if the connection is
        closed.
        """
        if not self.is_open:
            raise portNotOpenError
        with self._write_lock:
            try:
                self._socket.sendall(to_bytes(data).replace(IAC, IAC_DOUBLED))
            except socket.error as e:
                raise SerialException("connection failed (socket error): {}".format(e))
        return len(data)