Reusing Address with Sockets

[Kuros]

Hello,

I am writing a TCP server program, and everything is working fine, except 
for one minor problem. When I close the program, I cannot reuse the same 
address, I have to change the port it runs on. Now, I've tried to do this:

sock.setsockopt(SO_REUSEADDR, SO_LINGER, 1)

But that does not work. 

This is my code I use to create the socket...

        self._sock.bind(('', port))
        self._sock.setblocking(0)
        self._sock.listen(5)

Could someone point out what I am doing wrong?
Any help is greatly appreciated!

Kuros