How do you investigate python's implementation of built-in methods?
<p>I'm currently going through a basic compsci course. We use Python's <code>in</code> a lot. I'm curious how it's implemented, what the code that powers <code>in</code> looks like. </p>

<p>I can think of how <em>my</em> implementation of such a thing would work, but something I've learned after turning in a couple homework assignments is that my ways of doing things are usually pretty terrible and inefficient.. So I want to start investigating 'good' code. </p>
