text: from flask import Flask, render_template
  app = Flask(__name__)
  
  menu = ["Install", "First app", "Feedback"]
  @app.route("/")
  def index():
      return render_template('index.html', title='About Flask', menu=menu)
  
  @app.route("/about")
  def about():
      return render_template('about.html', title='About site')
  
  if __name__ == "__main__":
      app.run(debug=True)