Translate the host/port argument into a sequence of 5-tuples that contain all the necessary arguments for creating a socket connected to that service. host is a domain name, a string representation of an IPv4/v6 address or None. port is a string service name such as 'http', a numeric port number or None. By passing None as the value of host and port, you can pass NULL to the underlying C API.
socket.getaddrinfo(host, port, family=0, type=0, proto=0, flags=0)>>> socket.getaddrinfo("example.org", 80, proto=socket.IPPROTO_TCP)
[(socket.AF_INET6, socket.SOCK_STREAM,
6, '', ('2606:2800:220:1:248:1893:25c8:1946', 80, 0, 0)),
(socket.AF_INET, socket.SOCK_STREAM,
6, '', ('93.184.216.34', 80))]