tkinter.after() 无效命令名称

Question

I work on Python 3.10.2 and I just start to work with tkinter and I always have a problem with.after() method. For example with this program:

import tkinter as tk

def initialisation(compteur) :
    compteur=compteur+1
    print(compteur)
    root.after(2000,initialisation, compteur)

root=tk.Tk()    
initialisation(0)
root.mainloop()

I have this error:

1

invalid command name "1720125185344initialisation"
    while executing
"1720125185344initialisation"
    ("after" script)
2
3

It works but I still have this error 1 time. I have looked for solutions but I don't understand. Thank you in advance for your help.

Answer 1

try adding del root at the end of the script:

import tkinter as tk

def initialisation(compteur) :
    compteur=compteur+1
    print(compteur)
    root.after(2000,initialisation, compteur)

root=tk.Tk()    
initialisation(0)
root.mainloop()

del root