old_contents: from flask import Flask, url_for, render_template
  
  app = Flask(__name__) #__name__ = "__main__" if this is the file that was run.  Otherwise, it is the name of the file (ex. webapp)
  
  @app.route("/")
  def render_main():
      return render_template('home.html')
  
  @app.route("/page1")
  def render_main():
      return render_template('page1.html')
  
  @app.route("/page2")
  def render_main():
      return render_template('page2.html')
      
  if __name__=="__main__":
      app.run(debug=False, port=54321)
  
new_contents: from flask import Flask, url_for, render_template
  
  app = Flask(__name__) #__name__ = "__main__" if this is the file that was run.  Otherwise, it is the name of the file (ex. webapp)
  
  @app.route("/")
  def render_main():
      return render_template('home.html')
  
  @app.route("/page1")
  def render_page1():
      return render_template('page1.html')
  
  @app.route("/page2")
  def render_page2():
      return render_template('page2.html')
      
  if __name__=="__main__":
      app.run(debug=False, port=54321)
  
subject: Update webapp.py