im working on a 
github project but its not going so well.
this code:  
from tkinter import *
def NewFile():
    new = Label(root, text="about \n")
def OpenFile():
    openf = Label(root, text="about \n")
def About():
    about = Label(root, text="about \n")
root = Tk()
menu = Menu(root)
root.config(menu=menu)
filemenu = Menu(menu)
menu.add_cascade(label="File", menu=filemenu)
filemenu.add_command(label="New", command=NewFile)
filemenu.add_command(label="Open...", command=OpenFile)
filemenu.add_separator()
filemenu.add_command(label="Exit", command=root.quit)
helpmenu = Menu(menu)
menu.add_cascade(label="Help", menu=helpmenu)
helpmenu.add_command(label="About...", command=About)
body = Label(root, text="")
mainloop()
Doesnt work how I need it.
its suposed to write certant messages when you click file > new, file > open and help > about. 
IT DOES NOTHING
how can I make it do what I want?