Sockets are fundamentals. It's behind any kind of network communication done by the computers. It's the backbone behind world wide web. For example when you type "www.google.com" in your web browser, ...

On Python 3, socket.socket is monkey-patched to GreenSocket (of eventlet.greenio.base) object. When sock.makefile('rb') is called, sock.makefile('rb') creates a SocketIO object (of socket).

That seems like a very strange thing to do in this situation. The only time to pickle something is if you need to represent a non-string object on disk, but Python code is strings. I presume that the ...