Python Expert

I am making a load balancing HTTP proxy using python. The proxy must take a request from a browser, choose the best network interface to use (eg wifi or ethernet) and create a connection to that website. The connection through the chosen interface must be kept while the user requests different things from that website, ie every time a new request is made on the website, a new connection must be created, it must reuse the same one. I have uploaded the code I have started with.