1. Code used in the article seems to be from <a href="https:&#x2F;&#x2F;github.com&#x2F;inueni&#x2F;birdy" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;inueni&#x2F;birdy</a>.<p>2. The howlong = (today-ltdate2).days line doesn&#x27;t follow PEP8.