python3利用udp获取域名地址

addr.py

import socket


def dns_query(domain):
    addr = None
    with socket.socket(type=socket.SOCK_DGRAM) as s:
        try:
            s.connect((domain, 80))
            addr = s.getpeername()
            return addr[0]
        except socket.gaierror as err:
            print("cannot find %s, %s" % (domain, err))
    return addr


if __name__ == "__main__":
    addr = dns_query("github.com")
    if addr:
        print(addr)