title: Enthought: no Python documentation found for 'modules' + version number
body: <p>I want to be able to list the installed modules and their version number on my Python Enthought distribution. When I open the terminal and type</p>
  
  <pre><code>$ help('modules') 
  </code></pre>
  
  <p>i get </p>
  
  <pre><code>&gt;&gt; no Python documentation found for 'modules'
  </code></pre>
  
  <p>if I do the same for my standard python distro on the mac (/usr/bin/python/) it works fine although I am still missing the module version.</p>
  
  <p>Any idea how to properly list all the installed modules and their corresponding version?</p>