title: Installing anaconda over existing python system?
body: <p>I found an old windows xp machine running Python <code>2.5.2</code>. I would like to use Anaconda instead. Can I just install Anaconda on it and do I have to uninstall Python 2.5.2? Similarly, I have a Mac system with Python <code>2.7.9</code> working with some NLT libraries and I'd like to get Anaconda running on it too. What's the best course of action to get Anaconda over an existing system that already has python?</p>