如何在python中获取新接受的连接的端口号？

import socket

def get_new_connection_port():
    server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    server_socket.bind(('localhost', 0))
    server_socket.listen(1)
    _, port = server_socket.getsockname()
    client_socket, _ = server_socket.accept()
    client_socket.close()
    server_socket.close()
    return port

port = get_new_connection_port()
print("新接受的连接的端口号为:", port)