My application doesn’t show the frame. I’m using a system with controllers.
/questions/7546050/switch-between-two-frames-in-tkinter

In my application, I have a function that takes a long time to execute. I want to show a loading screen while it’s running. My program is working, but it’s not showing the frame “AnimationWindow”. This is weird because when I call the frame in other ways it works.

    def anim():
        self.controller.show_frame("AnimationWindow")
        while True:
            if self.l[0]:
                break
            time.sleep(0.01)
    def start_stream(self,data):
        id=self.add_nameFrame()
        self.l=[False]
        threading.Thread(target=my_func,daemon=True).start()
        self.anim()