old_contents: from gpiozero import Button
  
  
  def update():
      print("Update")
  
  update = Button(17)
  update.hold_time = 7
  update.when_held = update()
  
  while True:
      pass
  
  
  # channel_list = [17, 22, 23, 27]
  
new_contents: from gpiozero import Button
  
  
  def update():
      print("Update")
  
  update = Button(17)
  update.hold_time = 7
  update.when_held = update
  
  while True:
      pass
  
  
  # channel_list = [17, 22, 23, 27]
  
subject: update script