from umetrics import *
from ribbonabc import RibbonAddInABC
from tkinter import Tk, messagebox
class AddInCommand(RibbonAddInABC):
def on_command(Self) :
root=Tk()
root.withdraw()
messagebox.showinfo(title= 'Hello', message= 'Hello World!')
root.destroy()
def get_button_name(Self):
return 'Hello World!'
group_order = [AddInCommand]