title: ImportError: cannot import name suppress
body: <p>I am trying to install <a href="http://taigaio.github.io/taiga-doc/dist/setup-production.html" rel="nofollow">Taiga</a> on my computer, and for one of the scripts its trying to <code>import suppress</code> but failing. I tried doing this manually:</p>
  
  <pre><code>(taiga)$ python
  Python 3.3.3 (default, Nov 27 2013, 17:12:35) 
  [GCC 4.8.2] on linux
  Type "help", "copyright", "credits" or "license" for more information.
  &gt;&gt;&gt; from contextlib import suppress
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  ImportError: cannot import name suppress
  </code></pre>
  
  <p>Could someone please help?</p>