title: Can't downgrade to matplotlib 1.2.1 using enpkg
body: <p>I just installed Canopy Express 1.4.1 (64 bit) on a Mac running OS 10.6.8, and encountered the same problem with import of pylab that anakha272 reported in the question <a href="https://stackoverflow.com/q/24768145/1904584">Matplotlib import error ft2font</a>  I tried the workaround given in the answer to that question, but the downgrade to matplotlib 1.2.1 failed with the following error message in the Canopy terminal window:</p>
  
  <p><code>% enpkg --no-deps matplotlib 1.2.1</code></p>
  
  <p><code>HTTP Error 404: NOT FOUND</code></p>
  
  <p>(followed by various additional diagonstics which I'll spare you since I believe they all descend from the 404 error). </p>
  
  <p>Is <code>matplotlib 1.2.1</code> no longer available?  Does anybody known another workaround if I want to use pylab with the Canopy distribution?</p>