title: How to Find a tag without specific attribute using beautifulsoup?
body: <p>I'm trying to get the content of the 'p' tags that didn't have the specific attribute.</p>
  
  <p>I have some tags with 'class'='cost', and some tags with 'class'='cost' and 'itemprop'='price' </p>
  
  <pre><code>all_cars = soup.find_all('div', attrs={'class': 'listdata'})
  ...
  ...
  tatal_cost= car.findChildren('p', attrs={'class': 'cost'})
  cost= car.findChildren('p', attrs={'class': 'cost', 'itemprop':'price'})
  </code></pre>
  
  <p>I am trying to find 'p' tags without 'itemprop' attribute, but i cant find any solution.</p>