how to change the window name in tkinter code example

Example 1: change tkinter window name

windowName.title('Window Title')

#Example
import tkinter
window = tkinter.Tk()
window.title('My Title')

Example 2: title tikinter

from tkinter import Tk, Button, Frame, Entry, END

class ABC(Frame):
    def __init__(self,parent=None):
        Frame.__init__(self,parent)
        self.parent = parent
        self.pack()
        ABC.make_widgets(self)

    def make_widgets(self):
        self.root = Tk()
        self.root.title("Simple Prog")