strictly have to use underline--on windowsthe first letter of pull-down name is shortcut automaticallyand arrow and enter keys can be used to select pulldown items but explicit keys can enhance usability in large menusfor instancethe key sequence alt- - - runs the quit action in this script' nested submenu let' see what this translates to in the realm of the pixel figure - shows the window that first appears when this script is run on windows with my system settingsit looks differentbut similaron unixmacintoshand other windows configurations figure - menu_wina top-level window menu bar figure - shows the scene when the file pull down is selected notice that menu widgets are linkednot packed (or gridded)--the geometry manager doesn' really come into play here if you run this scriptyou'll also notice that all of its menu entries either quit the program immediately or pop up "not implementedstandard error dialog this example is about menusafter allbut menu selection callback handlers generally do more useful work in practice figure - the file menu pull down tkinter tourpart