title: How to check whether or not a iterating variable NavigableString or Tag type?
body: <p>I got the list mixed with Tag and NavigableString Type. I want to access only Tag data. How can I check? I want to avoid the following error.</p>
  
  <pre><code>AttributeError: type object 'BeautifulSoup' has no attribute 'NavigableString'
  </code></pre>