title: How can I delete EVERYTHING about Python including the one provided by Mac OS X and reinstall safely?
body: <p>Tl;dr I have been a dummy and messing with those things. I have been going to site_packages doing stuff I shouldn't have been doing and I have messed with my environment variables.... PATH.... PYTHONPATH.... I don't even know all of this stuff yet I have to research it more in depth. Bottom line is that when I'm trying to install a package using a package manager like pip to install opencv... it's installing fine supposedly but then I get the "no module named cv" error.</p>
  
  <p>I tried importing cv and cv2.</p>
  
  <p>I think I am having this problem because I have been messing with a lot of stuff I shouldn't have.</p>
  
  <p>So how do I start a brand new slate?... I don't even know how many python versions I have...</p>