dialog_background.py

"""
How to pop a message box without blocking the script. It's running in the background, so it may not be in best practices
but it works which is what I wanted.
"""

import threading
import time
import tkinter as tk


def show_dialog(title: str, message: str):
    # Create a new Tkinter window
    root = tk.Tk()
    root.withdraw()  # Hide the window

    # Create a popup message box
    popup = tk.Toplevel(root)
    popup.title(title)
    label = tk.Label(popup, text=message)
    label.pack(padx=40, pady=40)

    # Set the position of the popup message box on the screen
    screen_width = root.winfo_screenwidth()
    screen_height = root.winfo_screenheight()
    x = 1200  # Specify the x-coordinate of the top-left corner of the popup window
    y = 600  # Specify the y-coordinate of the top-left corner of the popup window
    popup.geometry(f'+{x}+{y}')

    # Show the popup message box
    popup.focus_set()
    popup.grab_set()
    popup.wait_window()

    # Close the Tkinter window
    root.destroy()


def show_popup(title, description: str):
    thread = threading.Thread(target=show_dialog, args=[title, description])
    thread.start()


show_popup('Title', 'Description')
for i in range(0, 10):
    time.sleep(1)
    print(f'Tick {i}')

# os._exit(0) # to exit the program even if the Dialog has not been closed yet.