I learned this trick when I first picked up Python, too. I came from Java and, naturally, started writing Python code in the style I had learned to write Java: Heavily object-oriented, with getters and setters everywhere.

Eventually, though, I stopped trying to program in Java in Python. Once you relax and stop trying to hide your precious instance variables from all of the potentially pernicious or incompetent programmers who might be using your code (usually, in my case, just me), you no longer need tricks like this. And you realize that you never really needed them to begin with.