rter code always uses 4 spaces
          instead of tabs. If you use both spaces and tabs, Python will raise an
          <code>IndentationError</code>.
        </p>

        <p>Many text editors, including Sublime and Atom, offer a setting to automatically
          use spaces instead of tabs.</p>


        <h3 id="indent-size">Indent size</h3>


        <p>Use 4 spaces to denote an indent. Technically, Python allows you to use any
          number of spaces as long as you are consistent across an indentat