> >>> ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
> >>> ctx.wrap_socket(socket.socket(), server_side=1)
> <ssl.SSLSocket object, fd=3, family=2, type=1, proto=0>
> >>> 
> 
> I'm not sure how to raise ValueError("certfile must be specified")
> here as SSLContext class doesn't store certfile information, at least
> at Python level. Any hint?

Actually, you shouldn't raise the error, since the certfile can be
specified after wrapping the socket.