title: Programmatically install NLTK corpora / models, i.e. without the GUI downloader?
body: <p>My project uses the NLTK. How can I list the project's corpus &amp; model requirements so they can be automatically installed? I don't want to click through the <code>nltk.download()</code> GUI, installing packages one by one.</p>
  
  <p>Also, any way to freeze that same list of requirements (like <code>pip freeze</code>)?</p>