title: What is the dfifference between instance dict and class dict
body: <p>I was reading the python descriptors and there was one line there</p>
  
  <blockquote>
    <p>Python first looks for the member in the instance dictionary. If it's
    not found, it looks for it in the class dictionary.</p>
  </blockquote>
  
  <p>I am really confused what is instance dict and what is class dictionary</p>
  
  <p>Can anyone please explain me with code what is that</p>
  
  <p>I was thinking of them as same</p>