tools.py 文件源码

def try_address(fqdn):
    """
    Check if the fqdn is valid
    Args:
        fqdn (str): fully qualified domain name
    """
    import socket
    try:
        socket.gethostbyname_ex(fqdn)
    except (socket.gaierror, UnicodeEncodeError):
        return False
    else:
        return True