title: Macports duplicate packages
body: <p>I have already Python 2.7 on my Mac Os 10.7 and i tried to install py27-mysql package that contains MySQLdb interface for Python. I had run <code>sudo ports install py27-mysql</code> and macports began to install all dependencies for that package python2.7, mysql5, etc that I already has. </p>
  
  <p>Now the questions:</p>
  
  <ol>
  <li>Why that happens?</li>
  <li>Where is now native Mac Os python and mysql?</li>
  <li>Which one I use after installation if I work from command shell?</li>
  <li>Is brew better?</li>
  </ol>