= Menu(win)
mainmenu.add_command(label="file", command=doSth)
mainmenu.add_command(label="edit", command...=doSth)
mainmenu.add_command(label="view", command=doSth)
mainmenu.add_command(label="window", command...=doSth)
mainmenu.add_command(label="tool", command=doSth)
mainmenu.add_command(label="help", command=...(label="file", menu=filemenu)
mainmenu.add_command(label="edit", command=doSth)
mainmenu.add_command...(label="view", command=doSth)
mainmenu.add_command(label="window", command=doSth)
mainmenu.add_command