title: Return Value of .save() in python Django like save in rails
body: <p>In Ruby on Rails we have</p>
  
  <pre><code>obj = Model.new
  obj.el = "sample"
  if obj.save
    puts "obj.save returns true"
  end
  </code></pre>
  
  <p>so do we have anything like this in django like</p>
  
  <pre><code>user_obj = User(email='email@email.com', user_name='username', password='****')
  if user_obj.save():
     print "will user_obj.save() returns anything?"
  </code></pre>
  
  <p>Does <code>.save()</code> return anything in Django and if so, what? How do I know whether <code>.save()</code> is a success or not?</p>