Weare going to see how to add a menu to a window with tkinter.

The window

A window will be like this:

import tkinter as tk


root = tk.Tk()

root.mainloop()

A text widget

Let’s add a text widget to the window (it is not necessary to make a menu, but we just want to populate the window with just one widget.

import tkinter as tk


root = tk.Tk()

text = tk.Text(root)
text.pack()

root.mainloop()

The menu bar

menu = tk.Menu(root)

We create a single voice of the menu

menu = tk.Menu(root)

#Add just a voice, with no sub voices
menu.add_command(label="Open")

To add a ‘cascade voice’ to the menu we do this: we create another menu, with another name, we use add_command to create a voice for this menu:

# add a cascade menu
submenu = tk.Menu(root)
submenu.add_command(label="Save file")

And then we use add_cascade to make this menu a menu ‘cascade’ in which a new submenu is shown when you press the label that you will see in the next line:

menu.add_cascade(label="File", menu=submenu)

You still can’t see the menu. To see it, you got to do this:

root.config(menu=menu)

The whole code

import tkinter as tk


root = tk.Tk()

text = tk.Text(root)
text.pack()

menu = tk.Menu(root)

#Add just a voice, with no sub voices
menu.add_command(label="Open")

# add a cascade menu
submenu = tk.Menu(root)
submenu.add_command(label="Save file")

menu.add_cascade(label="File", menu=submenu)

root.config(menu=menu)

root.mainloop()

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