python-web-server-tcp1

import socket 
host = ''
port = 51234
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM) #SOCK_STREAM means tcp
s.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1) #SO_REUSEADDR : after close socket,free the port
s.bind((host,port))
print("waiting for connecting")
s.listen(1) #generally less than 5
while True:
    clientsock,clientaddr = s.accept()
    print("Got connect from",clientsock.getpeername())
    clientsock.close()