Python Tkinter after() Only Executing Once

Question

Something that seems like it should be so simple is giving me quite an issue. I have a Tkinter GUI that I am trying to update at regular intervals. Specifically I am delet

Answer 1

Place a call to after at the end of update:

def __init__(self, frame):       
    self.frame = frame
    ...
    self.frame.after(1000, self.update)

def update(self): 
    ...
    self.frame.after(1000, self.update)

This is the way after works. It only queues the callback (e.g. self.update) once. Per the docs:

The callback is only called once for each call to this method. To keep calling the callback, you need to reregister the callback inside itself