from tkinter import *
from time import *
font1 = '-size 40'

#Création et paramétage de la fenêtre

fen = Tk()
fen.title=('Timer')
fen.geometry('260x170')
Tps_total = 0
Début = 0
tps = 0
ité = 1
chrono = '00:00:00'
Aff = Label(fen,text=chrono)
Aff.place(y=10,x=25)
Aff.configure(font=font1)

def timer():
    global tps,ité,font1,Aff
    while ité != 0:
        Aff.destroy()  
        test = int(time())
        sleep(0.1)
        test1 = int(time())
        if test != test1:           
            tps = int(tps) + 1
            chrono = strftime('%H:%M:%S', gmtime(tps))
            Aff = Label(fen,text=chrono)
            Aff.place(y=10,x=25)
            Aff.configure(font=font1)

def debut_du_chrono():
    timer ()

def fin_du_chrono():
    global ité
    ité = 0
    print('good')

pause = PhotoImage(file="pause.gif")
Arrêter = Button(fen,image=(pause),command=fin_du_chrono)
Arrêter.place(x=147,y=90)

play = PhotoImage(file="play.gif")
commencer = Button(fen,command=debut_du_chrono,image=(play))
commencer.place(x=5,y=90)