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()