title: How capitalize() method works in python/django?
body: <p>I have read that the method capitalize() is used to change the first letter of a string, from lowercase to uppercase.
  I am writing a small website in Django (first time) and I noticed that in the template section if I write item.description.capitalize() I get some error but, removing the parentheses it works, why?</p>
  
  <p>Isn't capitalize a method??</p>