663
In this article we will give you the code to create a simple countdown timer using Tkinter
Code
The concept is straightforward
- Import libraries
- Create a window of a certain size and draw the controls
- Take user input and press a button
- Countdown the timer and then display a message to the user
import time from tkinter import * from tkinter import messagebox # creating Tk window root = Tk() # size of window root.geometry("250x100") root.title("Countdown") hour=StringVar() minute=StringVar() second=StringVar() # setting the defaults to 0 hour.set("00") minute.set("00") second.set("00") # take input from the user hourEntry= Entry(root, width=3, font=("Arial",18,""), textvariable=hour) hourEntry.place(x=60,y=20) minuteEntry= Entry(root, width=3, font=("Arial",18,""), textvariable=minute) minuteEntry.place(x=110,y=20) secondEntry= Entry(root, width=3, font=("Arial",18,""), textvariable=second) secondEntry.place(x=160,y=20) def submit(): try: # the input provided by the user is stored in temp temp = int(hour.get())*3600 + int(minute.get())*60 + int(second.get()) except: print("Please input the right value") while temp >-1: mins,secs = divmod(temp,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)) # updating the GUI window root.update() time.sleep(1) # when temp value = 0; then a pop up appears if (temp == 0): messagebox.showinfo("Countdown", "Time's up ") # after every second the value of is decremented temp -= 1 # button widget btn = Button(root, text='Set Countdown timer', bd='5', command= submit) btn.place(x = 70,y = 60) root.mainloop()
Links
https://github.com/programmershelp/maxpython/blob/main/tkinter/tkintercountdown.py