title: Fabric + Virtualenvwrapper gives fatal error: run() received nonzero return code 1 while executing
body: <p>I have a fabric script to use virtualenvwrapper to create virtualenv, but after running mkvirutalenv  the fabric script complains about return code, see below</p>
  
  <pre><code>[localhost] run: export WORKON_HOME=/srv/www &amp;&amp; source /usr/local/bin/virtualenvwrapper.sh &amp;&amp; mkvirtualenv james --no-site-packages --distribute
  [localhost] Login password for 'james': 
  [localhost] out: New python executable in james/bin/python
  [localhost] out: Installing distribute...........................................................................................................................................................................................................................done.
  [localhost] out: Installing pip................done.
  
  
  Fatal error: run() received nonzero return code 1 while executing!
  
  Requested: export WORKON_HOME=/srv/www &amp;&amp; source /usr/local/bin/virtualenvwrapper.sh &amp;&amp; mkvirtualenv james --no-site-packages --distribute
  Executed: /bin/bash -l -c "cd /srv/www &amp;&amp; export WORKON_HOME=/srv/www &amp;&amp; source /usr/local/bin/virtualenvwrapper.sh &amp;&amp; mkvirtualenv james --no-site-packages --distribute"
  
  Aborting.
  </code></pre>