[Tkinter] Clearing Text in Tkinter

[metulburr]

You need to use textvariable

You need to change your structure in how you are doing things. For example you are creating a new label every time you callback, instead just make the one label, and set it in the callback. Also you should really consider using classes (OOP).

Here is a small example using textvariable. Keep pressing the button and the label changes based on the current epoch timestamp.

import tkinter as tk
import time

def callback():
    lbl.set('{}'.format(time.time()))
    
root = tk.Tk()
lbl = tk.StringVar()
lbl.set('default')
tk.Label(root, textvariable=lbl).pack()
tk.Button(root, text="Get Time", command=callback).pack()


root.mainloop()