title: Beautifulsoup FindAll by class attribute
body: <p>I have an html code as follows: </p>
  
  <pre><code>&lt;div class="_cFb"&gt;  
  &lt;div class="_XWk"&gt;Rabindranath Tagore&lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I have used the following python code for extracting the text content:</p>
  
  <pre><code>soup.find_all('div', attrs={'class':'._XWk'})
  </code></pre>
  
  <p>This code returns empty. However I am able to access other class atrributes that doesnt begin with an underscore(_). Any ideas to extract the tag text?</p>