title: How do I reinstall a directory in /usr/bin/python
body: <p>I have researched this for hours to no avail.</p>
  
  <p>I think I deleted my directory at /usr/bin/python when I installed python 3 because I get this error: <code>-bash: /usr/bin/python: No such file or directory.</code></p>
  
  <p>I've tried <code>sudo ln -s /usr/bin/python2.7 /usr/bin/python</code>, and that gives me <code>ln: /usr/bin/python: File exists</code></p>
  
  <p>However, it still doesn't permanently install a directory in /usr/bin/python. How do I permanently restore this directory?</p>
  
  <p>I'm on a mac.</p>
  
  <p>Thanks!</p>