title: How to symlink python in Homebrew?
body: <p>For some reason it's no symlinking when I run `brew link python.' I'm getting the following error and I do what it tells me to do but it's not working. I have tried doing what it tells me to do but maybe I'm not putting the formula_name right. Also, when I do 'which python' it doesn't point to the Homebrew python and I need help fixing that as well. </p>
  
  <pre><code>    Linking /usr/local/Cellar/python/2.7.3...Warning: Could not link python. 
      Unlinking....
  
     Error: Could not symlink file: /usr/local/Cellar/python/2.7.3/bin/smtpd.py
     Target /usr/local/bin/smtpd2.py already exists. You may need to delete it.
     To force the link and delete this file, do:
        brew link --overwrite formula_name
  </code></pre>