old_contents: '''
  Hello World example in flask
  '''
  
  from flask import Flask
  
  app = Flask(__name__)
  
  
  @app.route('/')
  def hello_world():
      '''
      Hello world function
      '''
      return 'Hello World!!!'
  
  
  if __name__ == '__main__':
      # Enable debug mode so that server restarts everytime there is a change to
      # a file. Remove in production
      app.run(debug=True)
      # app.run()
  
new_contents: '''
  This module will contain all the routes for the restful API
  '''
  
  from flask import Flask
  
  app = Flask(__name__)
  
  
  @app.route('/')
  def hello_world():
      '''
      Hello world function
      '''
      return 'Hello World!!!'
  
  
  if __name__ == '__main__':
      # Enable debug mode so that server restarts everytime there is a change to
      # a file. Remove in production
      app.run(debug=True)
      # app.run()
  
subject: Update main.py