title: What's the difference between python shebangs with /usr/bin/env rather than hard-path?
body: <p>I used to use the shebang </p>
  
  <pre><code>#!/usr/bin/env python
  </code></pre>
  
  <p>When is it better to use</p>
  
  <pre><code>#!/usr/bin/python
  </code></pre>
  
  <p>What is the exact difference between them?</p>