server.py 文件源码

def local_address(fallback):
    """Returns the local address of this computer."""
    try:
        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        s.connect(("8.8.8.8", 53))
        interface = s.getsockname()[0]
        s.close()
    except OSError:
        interface = fallback
        logging.info(
            'Cannot connect to network determine interface, using fallback "{}"'.
            format(fallback))

    return interface