title: Getting a python virtual env error after installing Lion
body: <p>I haven't touched python and virtualenv in a while, and I believe I setup my MBP with virtualenv and pip, but have totally forgotten how this stuff works.</p>
  
  <p>After installing lion, I'm getting this error when I open up a new terminal window:</p>
  
  <pre><code>Traceback (most recent call last):
    File "&lt;string&gt;", line 1, in &lt;module&gt;
  ImportError: No module named virtualenvwrapper.hook_loader
  virtualenvwrapper.sh: There was a problem running the initialization hooks. If Python could not import the module virtualenvwrapper.hook_loader, check that virtualenv has been installed for VIRTUALENVWRAPPER_PYTHON=/usr/bin/python and that PATH is set properly.
  </code></pre>
  
  <p>Any tips on how to fix this?</p>
  
  <p>Trying:</p>
  
  <p>easy_install eventlet</p>
  
  <p>I got this:</p>
  
  <pre><code>Traceback (most recent call last):
    File "/usr/local/bin/easy_install", line 5, in &lt;module&gt;
      from pkg_resources import load_entry_point
    File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py", line 2607, in &lt;module&gt;
      parse_requirements(__requires__), Environment()
    File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py", line 565, in resolve
      raise DistributionNotFound(req)  # XXX put more info here
  pkg_resources.DistributionNotFound: setuptools==0.6c11
  </code></pre>