tkMessageBox Widget is used in Python programs to show message boxes. This module is used to show a message by combining many functions.

Syntax:

messagebox.Function_Name(title, message [, options]) 

Example:

from tkinter import * 

from tkinter import messagebox

rt = Tk()

rt.geometry("300x200")

w = Label(rt, text ='WSC', font = "50") 

w.pack()

messagebox.showinfo("showinfo", "Information")

messagebox.showwarning("showwarning", "Warning")

messagebox.showerror("showerror", "Error")

messagebox.askquestion("askquestion", "Are you sure?")

messagebox.askokcancel("askokcancel", "Want to continue?")

messagebox.askyesno("askyesno", "Find the value?")

messagebox.askretrycancel("askretrycancel", "Try again?")  

rt.mainloop()