ttk.tkinter.Notebook does not refresh notebook page on Mac unless mouse moves out of tab area

Bug report

Bug description:

Test Code:

from tkinter import *
from tkinter.ttk import Notebook

mw = Tk()
mw.title("Notebook Test")
mw.geometry(f"{800}x{800}")

main_page_frame = Frame(mw, borderwidth=1, relief='ridge')
main_page_frame.pack(side='top', expand=1, fill='both')

notebook = Notebook(main_page_frame)
notebook.pack(expand=1, fill='both')

for info in ("one", "two", "three"):
    frame = Frame(mw)
    Label(frame, text=info).pack()
    notebook.add(frame, text=info)

mw.mainloop()

Test Computer

MacOS Sequoia: Version 15.3.1

Problem

prepare

Click on the three tabs, one after another. The behaviour is what one would expect

execution

• carefully click on a new tab... but don't move the mouse once you have clicked

problem

• the notebook page does not refresh (i.e. you won't see the label within the notebook)
• if you move the mouse carefully just within the tab name area, nothing happens
• if you move the mouse outside of this area, the label will suddenly appear.

Note

Tried this on a windows machine, and the behaviour as it should be, so this problem seems to be a MAC problem (don't have a linux machine so can't try there).

According to the documentation, the MAC python 3.13 has its own version of Tcl/Tk, so maybe this is a Tcl/Tk problem, and not a python problem?

CPython versions tested on:

3.13

Operating systems tested on:

macOS

Commencez par exécuter l’exemple de Notebook fourni sur macOS Sequoia avec Python 3.13 et comparez le comportement lors d’un clic sur un onglet avec Windows. Lisez l’implémentation de tkinter Notebook et le comportement de macOS Tcl/Tk mentionné dans le rapport. C’est terminé lorsqu’en sélectionnant un onglet, sa page s’affiche immédiatement sans déplacer la souris hors de la zone des onglets.