using_tkinter.py

# Example 1: Displaying a simple Hello, World! label
from tkinter import *
Label(text='Hello, World!').pack()
mainloop()

# Example 2: Displaying an entry (field) in Tkinter window
from tkinter import *
root = Tk()
e = Entry(root)
e.pack()
e.focus_set()
a = 5
b = 2
c = a * b
var = IntVar()
e.config(textvariable=var)
var.set(c)
mainloop()