title: Modifying a virtualenv so that packages installed in global site-packages are available
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/3371136/revert-the-no-site-packages-option-with-virtualenv">Revert the `--no-site-packages` option with virtualenv</a>  </p>
  </blockquote>
  
  
  
  <p>I've created a virtual environment using the <a href="http://virtualenvwrapper.readthedocs.org/en/latest/index.html" rel="noreferrer">virtualenvwrapper documentation</a> as follows:</p>
  
  <pre><code>$ pip install virtualenvwrapper
  $ export WORKON_HOME=~/Envs
  $ mkdir -p $WORKON_HOME
  $ source /usr/local/bin/virtualenvwrapper.sh
  $ mkvirtualenv env1
  </code></pre>
  
  <p>It works fine for the most part, but I've run into a few Django issues that require me to install some global packages outside of my virtual environment. Once I've installed these packages, how to I update my virtual environment to pull in these new packages? Or do I need to recreate the environment from scratch?</p>