title: Role of pass statement inside a function?
body: <p>I am a newbie in object oriented programming. After defining a class we simply create objects and try to access different variables and functions inside the class. In the following code I want to know that why we again have to mention class Dataset inside the function ans secondly what is the role of pass statement? </p>
  
  <pre><code>def read_data_set():
      class Dataset:
          pass
      data_sets = Dataset()
      return(data_sets)
      #Function call
  x=read_data_set()
  print(x)
  </code></pre>