old_contents: """
  Routes and views for the bottle application.
  """
  import sys
  
  from bottle import route, view
  from datetime import datetime
  
  @route('/')
  @route('/home')
  @view('index')
  def home():
      """Renders the home page."""
      return dict(
          year=datetime.now().year
      )
  
  @route('/contact')
  @view('contact')
  def contact():
      """Renders the contact page."""
      return dict(
          title='Contact',
          message='Your contact page.',
          year=datetime.now().year
      )
  
  @route('/about')
  @view('about')
  def about():
      """Renders the about page."""
      return dict(
          title='About',
          message='Python version -> ' + sys.version,
          year=datetime.now().year
      )
  
new_contents: """
  Routes and views for the bottle application.
  """
  import sys
  
  from bottle import route, view
  from datetime import datetime
  
  @route('/')
  @route('/home')
  @view('index')
  def home():
      """Renders the home page."""
      return dict(
          year=datetime.now().year
      )
  
  @route('/contact')
  @view('contact')
  def contact():
      """Renders the contact page."""
      return dict(
          title='Contact',
          message='Your contact page.',
          year=datetime.now().year
      )
  
  @route('/about')
  @view('about')
  def about():
      """Renders the about page."""
      return dict(
          title='About the runtime environment',
          message='Python version: ' + sys.version + ' >>>>> sys.path: ' + str(sys.path),
          year=datetime.now().year
      )
  
subject: add sys.path to About page