Here is my sample code:
    image = Image.open("E:\\production\\Windows utility tool\\images\\icon.ico")
    menu = (item("Sign in", show_window), item("Change status", status_online), item("Change icon", change_icon), item("Open application", open_application), item("Quit", quit_window))
    icon = pystray.Icon("Notifer", image, "notifier_application", menu)
    icon.run()
				
                        
This is how the menu should be for drop down submenus
Make sure to add
from pystray import Menu, MenuItem as Itemat the beginning of the code.Hope I gave you a proper answer.