Tkinter: Main window is not loading

Question

I'm currently learning to use Tkinter library in python, so to do that, I decided to do a few projects using it, right now I'm trying to make a digital clock using "Tkinter and time" libraries.

So far I'm aware of a bug in my code, and I'm looking for a solution to this bug.

Bug: I use three for loops inside each other to count the seconds/minutes/hours and change them accordingly (every one second the seconds variable (which I named secs) get added a 1 to it) etc... So I think that the problem is that it's taking too long for the loops to finish and for the program to reach the root.mainloop() line of code.

Code:

import tkinter
import time

# Setting the main setting in tkinter #
root = tkinter.Tk()

# Sizes of the window #
root.geometry("600x400")
root.resizable(False, False)

# Changing the title and the icon of the root #
root.title("Digital Clock")
root.iconbitmap("Digital clock icon.ico")

# Drawing the digital clock on the screen #
secs = 0
mins = 0
hrs = 0

label = tkinter.Label(root, text=f"0{hrs}:0{mins}:0{secs}", font=("helvetica", 38))
label.pack(ipadx=10, ipady=150)


for h in range(1, 24):
    for m in range(1, 60):
        for s in range(1, 60):
            hrs = h
            mins = m
            secs = s

            # Organize the string in the right format #
            if secs < 10 and mins < 10 and hrs < 10:
                label.config(text=f"0{hrs}:0{mins}:0{secs}")
            elif secs < 10 <= hrs and mins < 10:
                label.config(text=f"{hrs}:0{mins}:0{secs}")
            elif secs < 10 <= mins and hrs >= 10:
                label.config(text=f"{hrs}:{mins}:0{secs}")
            elif secs >= 10 and mins >= 10 and hrs >= 10:
                label.config(text=f"{hrs}:{mins}:{secs}")

            time.sleep(1)

# The main loop #
root.mainloop()

Answer 1

It looks like your loop is running infinitely that is why tkinter can't reach to root.mainloop() which is after the loop