title: pip3 install couchdbkit failed with "Command "python setup.py egg_info"
body: <p>I am unable to install couchdbkit in ubuntu. The command: <code>pip3 install couchdbkit</code> gives this following error:</p>
  
  <pre><code>Collecting couchdbkit
    Using cached couchdbkit-0.6.5.tar.gz
      Complete output from command python setup.py egg_info:
      Traceback (most recent call last):
        File "&lt;string&gt;", line 1, in &lt;module&gt;
        File "/tmp/pip-build-_302m_0e/couchdbkit/setup.py", line 25, in &lt;module&gt;
          long_description = file(
      NameError: name 'file' is not defined
  
      ----------------------------------------
  Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-_302m_0e/couchdbkit/
  </code></pre>
  
  <p>Please guide me if there any other way to install couchdbkit in ubuntu.</p>