Simple Python web server on sockets

import socket

HOST = '127.0.0.1'  # Standard loopback interface address (localhost)
PORT = 65432        # Port to listen on (non-privileged ports are > 1023)


response = """HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8

<html>
   <head>
       <title>My Great Title</title>
   </head>
   <body>
       <h1>Hello from socket</h1>
   </body>
</html>
"""


with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
    s.bind((HOST, PORT))

    while True:
        print("Start listening...")
        s.listen()

        conn, addr = s.accept()
        with conn:
            print('Connected by', addr)
            while True:
                data = conn.recv(1024)        # 1010101110101…
                print(data.decode("utf-8"))
                if not data:
                    break

                conn.sendall(response.encode("utf-8"))  # 110101111001…
                break