old_contents: import os
  from flask import Flask, send_from_directory, render_template
  from flask_sqlalchemy import SQLAlchemy
  
  app = Flask(__name__)
  app.config.from_object('rtr.config')
  db = SQLAlchemy(app)
  
  
  @app.before_first_request
  def setup():
      pass
      # Recreate database each time for demo
      # Base.metadata.drop_all(bind=db.engine)
      # Base.metadata.create_all(bind=db.engine)
  
  
  @app.route('/')
  def root():
      # users = db.session.query(User).all()
      return render_template('index.html')
  
  
  @app.route('/favicon.ico')
  def favicon():
      return send_from_directory(
          os.path.join(app.root_path, 'static'),
          'favicon.ico', mimetype='image/vnd.microsoft.icon')
  
  if __name__ == '__main__':
      app.run(os.environ.get('IP', '0.0.0.0'), int(os.environ.get('PORT', 8080)))
  
new_contents: import os
  from flask import Flask, send_from_directory, render_template
  from flask_sqlalchemy import SQLAlchemy
  
  app = Flask(__name__)
  app.config.from_object('rtrss.config')
  db = SQLAlchemy(app)
  
  
  @app.before_first_request
  def setup():
      pass
      # Recreate database each time for demo
      # Base.metadata.drop_all(bind=db.engine)
      # Base.metadata.create_all(bind=db.engine)
  
  
  @app.route('/')
  def root():
      # users = db.session.query(User).all()
      return render_template('index.html')
  
  
  @app.route('/favicon.ico')
  def favicon():
      return send_from_directory(
          os.path.join(app.root_path, 'static'),
          'favicon.ico', mimetype='image/vnd.microsoft.icon')
  
  if __name__ == '__main__':
      app.run(os.environ.get('IP', '0.0.0.0'), int(os.environ.get('PORT', 8080)))
  
subject: Fix a typo