make a pop up window in python

1from tkinter import *
2
3def alert_popup(title, message, path):
4    """Generate a pop-up window for special messages."""
5    root = Tk()
6    root.title(title)
7    w = 400     # popup window width
8    h = 200     # popup window height
9    sw = root.winfo_screenwidth()
10    sh = root.winfo_screenheight()
11    x = (sw - w)/2
12    y = (sh - h)/2
13    root.geometry('%dx%d+%d+%d' % (w, h, x, y))
14    m = message
15    m += '\n'
16    m += path
17    w = Label(root, text=m, width=120, height=10)
18    w.pack()
19    b = Button(root, text="OK", command=root.destroy, width=10)
20    b.pack()
21    mainloop()

1import tkinter as tk
2
3def popupmsg(msg, title):
4    root = tk.Tk()
5    root.title(title)
6    label = ttk.Label(root, text=msg)
7    label.pack(side="top", fill="x", pady=10)
8    B1 = tk.Button(root, text="Okay", command = root.destroy)
9    B1.pack()
10    popup.mainloop()