Tkinter option cursor in Menu class
The docs for tkinter Menu state that the cursor option denotes "The cursor that appears when the mouse is over the choices, but only when the menu has been torn off". So, I don't think you can actually do what you want. Only when your sub menu has been detached (torn off), you can see your cursor changing. Here is a Demo.
import tkinter as tkclass Settings: def __init__(self, master): # Elements of the menu self.master=master self.menu = tk.Menu(root, fg="red") self.subMenu = tk.Menu(self.menu, cursor="plus") def openMenu(self): # Configuration of the menu self.menu.add_cascade(label="Options", menu=self.subMenu) self.addOptionsSubMenu() self.master.config(menu=self.menu) def addOptionsSubMenu(self): # Add elements at the sub menu self.subMenu.add_command(label="Quit", command=self.quit) self.subMenu.add_command(label="Do nothing", command=self.passa) # Quit the function def quit(self): exit() # Do nothing def passa(self): passroot = tk.Tk()app = Settings(root)app.openMenu()root.mainloop()