import socket
s = socket.socket()
host = socket.gethostname()
port = 12345
s.bind((host , port))
s.listen()
while True:
    (connection.addr )= s.accept()
    print("verbindung von", addr)
    msg= "Danke für das vorbeischauen!"
    connection.send(msg.encode("utf-8"))
    connection.close()