How to change a value in an existing window and display it while it changes

Question

import random

while 1:
    x = randomint(0,25)
    Print(x)

Is it possible to Print the "x" Output in a tkinter GUI (just changing the value in the existing window without opening a new Window for a new value)?

I know how to create windows and show text within the window. But I don't understand how to show the value in the window even when the value is changing

Answer 1

If you want to update a value in tkinter, you could use a label and then use the configure (or config) method to modify the value every time the variable changes.

Illustrative Code:

from tkinter import *

def update_value(value): 
    global label
    label.configure(text = value)

root = Tk()

#Creating a frame to contain a label and an entry
frame = Frame(root)
frame.grid(row = 0, column = 0, padx = 5, pady = 5, sticky = NSEW)

#Creating the label
label = Label(frame, text = "Label", bg = "black", fg = "white", font = ('Comic Sans', 15))
label.grid(row = 0, column = 0, padx = 5, pady = 5, ipadx = 5, ipady = 5, sticky = EW)

#Creating an entry
entry = Entry(frame, font = ('Comic Sans', 15), bg = "white", fg = "black")
entry.grid(row = 0, column = 1, padx = 5, pady = 5, ipadx = 5, ipady = 5, sticky = EW)

#Adding a key binding to entry so that everytime the user hits the enter key, the updated value shows in the label 
entry.bind("<Return>", lambda e: update_value(entry.get()))

root.mainloop()

Every time the user makes a change in the entry box and hits the enter key, the label gets updated with the new value in the entry box.