Python, Tkinter: How to get a widget to run function on pack?

Question

Say I have an instance of a custom class, CustomFrame , which inherits from Tkinter's Frame widget asssigned to custom_frame , a child of a root parent Tk window widget, and I pack (or place or grid) it:

custom_frame = CustomFrame(root)
custom_frame.pack()

Is there a way to make the custom_frame run a method of CustomFrame when it is packed, without just calling the function before packing custom_frame ? For example, somehow overriding the usual pack method to run the usual pack method and then call another method?

Answer 1

Since you are defining the frame anyway, just add this to your frame:

def pack(self, *args, **kwargs):
    super(CustomFrame, self).pack(*args, **kwargs)
    # Do whatever