title: What's the difference between python3.<x> and python3.<x>m
body: <ul>
  <li>What does the <strong><code>m</code></strong> stand for in <code>python3.6m</code> ? </li>
  <li>How does it differ to non <strong><code>m</code></strong> version?</li>
  <li>In which case would I prefer to use <code>python3.6m</code> rather than <code>python3.6</code>?</li>
  </ul>