Have a python file move itself
<p>I'm writing a script that emulates a unix environment with python (yes, I know that may sound silly).</p>

<p>Basically I set up the "pwd" and "ls" commands before the "cd" command. Now I need my python script to navigate itself around directories by moving itself. I was wondering if anyone could point me in the right direction? eg.What commands to use, etc</p>

<p>Note. I would prefer it if I only had to use built-in modules.</p>

<p>Thank You!</p>
