Python 3 Tkinter GUI Hello World Program

# Write a Python GUI program
# using tkinter module
# to diplay a window
# with title "Hello World"

import tkinter as tk

def main():
    window= tk.Tk()
    window.title("Hello World")

    window.mainloop()

main()

# Write a Python GUI program
# using tkinter module
# to diplay a window
# with title "Hello World"

import tkinter as tk

def main():
    window= tk.Tk()
    window.title("Hello World")
    window.geometry("400x200")

    window.mainloop()

main()