title: Install Numpy on Mac OS X Lion 10.7
body: <p>I need to install Numpy on my Mac OS X Lion 10.7. I googled a little bit, it seems like there are a lot of stuff needs to be installed. And some says I need install Xcode before I install Numpy. But the official website of Numpy doesn't give much information about installing Numpy on Mac. I really don't want to install Xcode as it would cost a lot space.</p>
  
  <p>So anyone knows how to install Numpy?  What's the prerequisites? </p>
  
  <p>Thanks,</p>