title: How do I run a python interpreter in Emacs?
body: <p>I just downloaded GNU emacs23.4, and I already have python3.2 installed in Windows7.</p>
  
  <p>I have been using Python IDLE to edit python files.</p>
  
  <p>The problem is that I can edit python files with Emacs but I do not know how to run python interpreter in Emacs. When i click on "switch to interpreter", then it says "Searching for program: no such file or directory, python"</p>
  
  <p>Someone says i need to make some change on .emacs file, but i do not know where to look for.</p>
  
  <p>And I am very unexperienced and just started to learn programming. I am not familiar with commonly used terminologies. I have been searching for solutions but most of the articles i find on the Internet only confuse me.</p>
  
  <p>so the questions are:</p>
  
  <ol>
  <li>how do i run python interpreter in Emacs?</li>
  <li>are there different kind of python interpreter? if so, why do they have different interpreters for one language?</li>
  </ol>