title: Jedi-vim doesn't work
body: <p>I have a issue with VIM. I'm trying to install jedi-vim according to <a href="https://github.com/davidhalter/jedi-vim" rel="nofollow">https://github.com/davidhalter/jedi-vim</a>
  but when I open vim, it report such error:</p>
  
  <pre><code>initialize.py" 25L, 831C'import site' failed; use -v for traceback
  
  Error detected while processing /home/.../.vim/autoload/jedi.vim:
  
  line 285
  
  Traceback (most recent call last):
  
    File "&lt;string&gt;", line 1, in &lt;module&gt;
  
    File "/home/.../.vim/initialize.py", line 10, in &lt;module&gt;
  
      import os
  
  ImportError: No module named os
  </code></pre>
  
  <p>And when I use Ctrl+Space in vim, it results in </p>
  
  <pre><code>Error detected while processing function jedi#completions:                                                               
  
  line    1:
  
  Traceback (most recent call last):
  
  Press ENTER or type command to continue
  </code></pre>
  
  <p>In fact, I don't get any error when importing os from the command line..</p>
  
  <pre><code>import os
  
  os,
  
  module 'os' from '/usr/local/install/python-2.7.5/lib/python2.7/os.pyc'
  </code></pre>
  
  <p>Anybody know how to solve this error?Thank You.</p>