title: Cleaning Python modules an have fresh start Mac OS X
body: <p>I am not a total newbie but I am trying to install modules for quite a long time and at this point i would like to have a fresh start and install python and all the modules I need so i really understand them. My problem is that some of them import, but most of them install either to the wrong site-packages or dont import maybe because i messed up my system/python. Also I tried the PYTHONPATH and PATH to set this up right, but it never worked.</p>
  
  <p>So my questions are:</p>
  
  <ol>
  <li>Is there a way to ensure I can clean everything up and start from zero ?
  Ideally this would be without having to set up Mac OSX new.</li>
  <li>Is there a way to install all the modules in the correct place (whatever the directory is I dont care, it should just work)?</li>
  <li>Is there a good step-by-step description on how installing modules works. And I dont mean just the info to use easy_install, pip install etc, but a way to fully understand what I need to consider, where I need to put them, why these modules are recognized in certain directories, how the system finds them and most important what are the most common pitfalls and how to avoid them.</li>
  </ol>
  
  <p>I also tried Macports and various other similiar ways to install but even if some of them worked and while I am sure that these are really great tools, most I had to hack to work. </p>
  
  <p>So if someone can recommend a good and stable way to install a lot of modules at once, this would be incredibly useful. </p>
  
  <p>Thanks a lot !!!!</p>
  
  <p>And sorry for the long questions. </p>