TKinter - How to stop a loop with a stop button?

Question

I have this program which beeps every second until it\'s stopped. The problem is that after I press \"Start\" and the beeps starts, I cannot click the \"Stop\" button becaus

Answer 1

The problem is that the while loop in start() blocks the GUI handler mainloop(). Try using Tk.after() in start():

def start(force=True):
    global running
    if force:
        running = True
    if running:
        winsound.Beep(Freq, Dur)
        top.after(1000, start, False)

And change stop():

def stop():
    global running
    running = False