Using Socket in Python to Implement IPv6 Network Programming

Environmental construction: 1. Ensure that version 3.3 or higher of the Python programming language is installed. 2. Install dependent class libraries in the Python environment, such as' socket '. Dependent class libraries: 1. ` socket `: Standard library in Python for network programming. Implementation example (server side): python import socket import sys def start_server(): #Create a TCP socket for IPv6 try: server_socket = socket.socket(socket.AF_INET6, socket.SOCK_STREAM) except socket.error as e: print('Failed to create socket. Error code: ' + str(e[0]) + ', Error message: ' + e[1]) sys.exit() print('Socket created') #Bind Address and Port host = '' port = 12345 try: server_socket.bind((host, port)) except socket.error as e: print('Failed to bind. Error code: ' + str(e[0]) + ', Error message: ' + e[1]) sys.exit() print('Socket bind complete') #Listening for connections server_socket.listen(10) print('Socket now listening') #Accept connection and process while True: #Waiting for client connection client_socket, addr = server_socket.accept() print('Connected with ' + addr[0] + ':' + str(addr[1])) #Sending data to clients client_socket.sendall(b'Welcome to the server. Bye!') #Close Connection client_socket.close() #Close the server socket server_socket.close() start_server() Implementation example (client): python import socket import sys def start_client(): #Create a TCP socket for IPv6 try: client_socket = socket.socket(socket.AF_INET6, socket.SOCK_STREAM) except socket.error as e: print('Failed to create socket. Error code: ' + str(e[0]) + ', Error message: ' + e[1]) sys.exit() print('Socket created') #Connect to server host = 'localhost' port = 12345 try: client_socket.connect((host, port)) except socket.error as e: print('Failed to connect. Error code: ' + str(e[0]) + ', Error message: ' + e[1]) sys.exit() print('Socket connected') #Receive data from the server response = client_socket.recv(1024) print(response.decode('utf-8')) #Close Connection client_socket.close() start_client() Summary: IPv6 network programming can be easily realized through Python's' socket 'Standard library. In the server-side code, we created an IPv6 TCP socket, bound the address and port, and then listened for connections and accepted client requests. In the client code, we also created an IPv6 TCP socket and connected it to the server's address and port, then received the data returned by the server. The above code provides a basic example of IPv6 network programming.