# myCalculator_expt1.py

from tkinter import *
from decimal import *


##### main:
window = Tk()
window.title("MyCalculator")

# use Entry widget for an editable display
display = Entry(window, width=45, bg="light green")
display.grid()

# create num_pad buttons:
def click1():
    display.insert(END, "1")
    
Button(window, text="1", width=5, command=click1).grid(row=1,column=0)


##### Run mainloop
window.mainloop()