title: Join two word in a item from a list python
body: <p>I have this list:</p>
  <pre><code>['Fantasy', 'Young Adult', 'Paranormal', 'Paranormal Romance']
  </code></pre>
  <p>Is it possible to join the two words in an item like <code>'Young.Adult'</code></p>
  <p>I mean in general, not for that two words(the list only contains max two words).</p>