python countdown timer tkinter
import time from tkinter import * from tkinter import messagebox f = ("Arial",24) ws = Tk() ws.geometry("300x250+1500+700") ws.title("PythonGuides") ws.config(bg='#345') hour=StringVar() minute=StringVar() second=StringVar() hour.set("00") minute.set("00") second.set("10") hour_tf= Entry( ws, width=3, font=f, textvariable=hour ) hour_tf.place(x=80,y=20) mins_tf= Entry( ws, width=3, font=f, textvariable=minute) mins_tf.place(x=130,y=20) sec_tf = Entry( ws, width=3, font=f, textvariable=second) sec_tf.place(x=180,y=20) def startCountdown(): try: userinput = int(hour.get())*3600 + int(minute.get())*60 + int(second.get()) except: messagebox.showwarning('', 'Invalid Input!') while userinput >-1: mins,secs = divmod(userinput,60) hours=0 if mins >60: hours, mins = divmod(mins, 60) hour.set("{0:2d}".format(hours)) minute.set("{0:2d}".format(mins)) second.set("{0:2d}".format(secs)) ws.update() time.sleep(1) if (userinput == 0): messagebox.showinfo("", "Time's Up") userinput -= 1 start_btn = Button( ws, text='START', bd='5', command= startCountdown ) start_btn.place(x = 120,y = 120) ws.mainloop()
