new_contents: from flask import Flask, render_template, send_from_directory, request
  import jinja2
  import json
  import IPython.html
  import os
  
  static = os.path.abspath(os.path.dirname(__file__)) + '/example-notebooks'
  
  app = Flask(
      __name__,
      static_folder=static,
  )
  
  if __name__ == '__main__':
      app.run(debug=True, port=5001)
  
subject: Add notebook_fileserver.py to scripts directory