title: Can't import flask because werkzeug
body: <p>When I use <code>from flask import *</code>, I get the error</p>
  
  <blockquote>
    <p>ImportError: No module named werkzeug.exceptions</p>
  </blockquote>
  
  <p>However, when I do <code>pip freeze</code>, I can see that <code>Werkzeug==0.11.11</code> is indeed installed.  How can I fix this?</p>