title: Can't install csv module
body: <p>I am a mac user and today I tried installing <code>csv</code> today and here is command
  <code>pip install csv</code>.But unfortunately it returned the following error</p>
  
  <pre class="lang-none prettyprint-override"><code>Could not find a version that satisfies the requirement csv (from versions: )
  No matching distribution found for csv
  </code></pre>
  
  <p>I have Python version 2.7.13 and I have installed other dependencies like <code>scikit-learn,numpy and matplotlib</code>, but for some reason I can't install <code>csv</code>.</p>