Menu bars with tkinter-Python

from tkinter import *

from tkinter import messagebox as msg

window = Tk()

window.title("Menu Bar Example")

window.geometry("720x480")

def showmsg():

msg.showinfo('Details', 'Done!')

menu = Menu(window)

file = Menu(menu, tearoff = 1)

file.add_command(label = 'New File Ctrl + N', command = showmsg)

file.add_command(label = 'New Window Ctrl+Shift+N', command = showmsg)

file.add_separator()

file.add_command(label = 'Open File Ctrl+O', command = showmsg)

file.add_command(label = 'Save Ctrl+S', command = showmsg)

file.add_command(label = 'Save as Ctrl+Shift+S', command = showmsg)

# Here I have set tearoff value = 0 intensionally. Just try it with value=1

edit = Menu(menu, tearoff = 0)

edit.add_command(label = 'Undo Ctrl+Z', command = showmsg)

edit.add_command(label = 'Redo Ctrl+Y', command = showmsg)

edit.add_separator()

edit.add_command(label = 'Cut Ctrl+X', command = showmsg)

edit.add_command(label = 'Copy Ctrl+C', command = showmsg)

edit.add_command(label = 'Paste Ctrl+V', command = showmsg)

menu.add_cascade(label = 'File' , menu = file)

menu.add_cascade(label = 'Edit' , menu = edit)

window.config(menu = menu)

window.mainloop()