make calculator in python

main.py
from tkinter import *

root = Tk()
root.title("Calculator")

# Create an Entry widget to get the user input
input_entry = Entry(root, width=35, borderwidth=5)
input_entry.grid(row=0, column=0, columnspan=4, padx=10, pady=10)

# Define the arithmetic operations
def button_click(number):
	current = input_entry.get()
	input_entry.delete(0, END)
	input_entry.insert(0, str(current) + str(number))

def button_clear():
	input_entry.delete(0, END)

def button_add():
	first_number = input_entry.get()
	global first_num
	global math_operation
	math_operation = "addition"
	first_num = int(first_number)
	input_entry.delete(0, END)

def button_subtract():
	first_number = input_entry.get()
	global first_num
	global math_operation
	math_operation = "subtraction"
	first_num = int(first_number)
	input_entry.delete(0, END)

def button_multiply():
	first_number = input_entry.get()
	global first_num
	global math_operation
	math_operation = "multiplication"
	first_num = int(first_number)
	input_entry.delete(0, END)

def button_divide():
	first_number = input_entry.get()
	global first_num
	global math_operation
	math_operation = "division"
	first_num = int(first_number)
	input_entry.delete(0, END)

def button_equal():
	second_number = input_entry.get()
	input_entry.delete(0, END)

	if math_operation == "addition":
		input_entry.insert(0, first_num + int(second_number))
	elif math_operation == "subtraction":
		input_entry.insert(0, first_num - int(second_number))
	elif math_operation == "multiplication":
		input_entry.insert(0, first_num * int(second_number))
	elif math_operation == "division":
		input_entry.insert(0, first_num / int(second_number))

# Create the numeric buttons
button_1 = Button(root, text="1", padx=40, pady=20, command=lambda: button_click(1))
button_2 = Button(root, text="2", padx=40, pady=20, command=lambda: button_click(2))
button_3 = Button(root, text="3", padx=40, pady=20, command=lambda: button_click(3))
button_4 = Button(root, text="4", padx=40, pady=20, command=lambda: button_click(4))
button_5 = Button(root, text="5", padx=40, pady=20, command=lambda: button_click(5))
button_6 = Button(root, text="6", padx=40, pady=20, command=lambda: button_click(6))
button_7 = Button(root, text="7", padx=40, pady=20, command=lambda: button_click(7))
button_8 = Button(root, text="8", padx=40, pady=20, command=lambda: button_click(8))
button_9 = Button(root, text="9", padx=40, pady=20, command=lambda: button_click(9))
button_0 = Button(root, text="0", padx=40, pady=20, command=lambda: button_click(0))

# Create the operator buttons
button_add = Button(root, text="+", padx=39, pady=20, command=button_add)
button_subtract = Button(root, text="-", padx=41, pady=20, command=button_subtract)
button_multiply = Button(root, text="*", padx=40, pady=20, command=button_multiply)
button_divide = Button(root, text="/", padx=41, pady=20, command=button_divide)

# Create the special buttons
button_clear = Button(root, text="Clear", padx=79, pady=20, command=button_clear)
button_equal = Button(root, text="=", padx=91, pady=20, command=button_equal)

# Put the buttons on the screen
button_1.grid(row=1, column=0)
button_2.grid(row=1, column=1)
button_3.grid(row=1, column=2)

button_4.grid(row=2, column=0)
button_5.grid(row=2, column=1)
button_6.grid(row=2, column=2)

button_7.grid(row=3, column=0)
button_8.grid(row=3, column=1)
button_9.grid(row=3, column=2)

button_0.grid(row=4, column=0)

button_clear.grid(row=4, column=1, columnspan=2)
button_add.grid(row=5, column=0)
button_subtract.grid(row=6, column=0)
button_multiply.grid(row=6, column=1)
button_divide.grid(row=6, column=2)
button_equal.grid(row=5, column=1, columnspan=2)

root.mainloop()
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