python - missing 1 required positional argument: 'times' in function

Question

I keep getting the error:

missing 1 required positional argument: 'times'

While my code is:

import tkinter as tk
from tkinter import messagebox

top = tk.Tk()

top.geometry("200x100")

def helloCallBack(times):
   times = times + 1
   messagebox.showinfo( "Clicked!!1", "Hello World")
   print("Clicked button " + str(times) + " times")
   

B = tk.Button(top, text ="Hello", command = helloCallBack)
B2 = tk.Button(top, text="Exit", command=top.destroy)

B2.pack(pady=20)
B.pack()
top.mainloop()

I tried to find an answer, but they used classes so I couldn't find an answer.

question from:https://stackoverflow.com/questions/65851720/missing-1-required-positional-argument-times-in-function

Answer 1

times shouldn't be a parameter to the function, it should be a global variable so it keeps its value between calls.

times = 0

def helloCallBack():
    global times
    times = times + 1
    messagebox.showinfo( "Clicked!!1", "Hello World")
    print("Clicked button " + str(times) + " times")