title: Pip NLTK install issue on Ubuntu using Virtualenv
body: <p>For reference here is the nltk installation documentation <a href="http://www.nltk.org/download" rel="nofollow">nltk here</a></p>
  
  <p>Is there a way to install nltk using pip and virtualenv? I have installed the dependencies using pip into my virtualenv but when I attempt to install nltk it fails.</p>
  
  <p>The error is that there is no setup script. There is source installation instructions for linux on the nltk site to do sudo python setup.py install. But how could I do this into a virtualenv?</p>
  
  <p>Pip downloads and starts to install nltk so surely they plan for people to use pip if its in the package index.</p>