Shutting down sockets properly

Question

I\'m trying to make a server / client connection with sockets. But they will not close properly and I can\'t wrap my head around why.

Update 1

I\'ve corre

Answer 1

you are calling s.close, instead of s.close().

you need to invoke the socket.close() method if you want the client to terminate the connection.`

Answer 2

s.close                     # Close the socket when done

Sticks out to my eyes because you don't actually CALL anything, you should try s.close()

Answer 3

you need socket.socket.setsockopt, .i.e s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

Though the socket will be closed by the os when process ended, it is a good behavior to call close() explicitly. However, after that, the local addr(local_ip, local_port) is not avaiable until 2 MSL(maximum segment lifetime) has passed. Why? and what we can do? you can read these:

http://www.tcpipguide.com/free/t_TCPConnectionTermination-3.htm and http://www.unixguide.net/network/socketfaq/4.5.shtml

It will be difficult to me to post it more clear than they do :).