Code block print("hello_world") from tkinter import *

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

e = Entry(root, width = 35, borderwidth = 5) e.grid(row = 0, column = 0, columnspan = 3, padx = 10, pady = 10)

e.insert(0,"")

def button_click(number): #e.delete(0, END) current = e.get() e.delete(0, END) e.insert(0, str(current) + str(number))

def button_clear(): e.delete(0, END) def button_add(): first_number = e.get() global f_num global math math = "addition" f_num = int(first_number) e.delete(0, END) def button_equal(): second_number = e.get() e.delete(0, END) if math == "addition": e.insert(0, f_num + int(second_number)) if math == "subtraction": e.insert(0, f_num - int(second_number)) if math == "multiplication": e.insert(0, f_num * int(second_number)) if math == "division": e.insert(0, f_num / int(second_number))

def button_subtract(): first_number = e.get() global f_num global math math = "subtraction" f_num = int(first_number) e.delete(0, END) def button_multiply(): first_number = e.get() global f_num global math math = "multiplication" f_num = int(first_number) e.delete(0, END) def button_divide(): first_number = e.get() global f_num global math math = "division" f_num = int(first_number) e.delete(0, END)

button1 = Button(root, text = "1", padx = 40, pady = 20, command = lambda: button_click(1)) button2 = Button(root, text = "2", padx = 40, pady = 20, command = lambda: button_click(2)) button3 = Button(root, text = "3", padx = 40, pady = 20, command = lambda: button_click(3)) button4 = Button(root, text = "4", padx = 40, pady = 20, command = lambda: button_click(4)) button5 = Button(root, text = "5", padx = 40, pady = 20, command = lambda: button_click(5))

button6 = Button(root, text = "6", padx = 40, pady = 20, command = lambda: button_click(6)) button7 = Button(root, text = "7", padx = 40, pady = 20, command = lambda: button_click(7)) button8 = Button(root, text = "8", padx = 40, pady = 20, command = lambda: button_click(8)) button9 = Button(root, text = "9", padx = 40, pady = 20, command = lambda: button_click(9)) button0 = Button(root, text = "0", padx = 40, pady = 20, command = lambda: button_click(0))

c+ ++ +-

button_add = Button(root, text = "+", padx = 39, pady = 20, command = button_add) button_equal1 = Button(root, text = "=", padx = 91, pady = 20, command = button_equal) button_clear = Button(root, text = "clear", padx = 79, pady = 20, command = button_clear)

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)

button1.grid(row=3, column=0) button2.grid(row=3, column=1) button3.grid(row=3, column=2)

button4.grid(row=2, column=0) button5.grid(row=2, column=1) button6.grid(row=2, column=2)

button7.grid(row=1, column=0) button8.grid(row=1, column=1) button9.grid(row=1, column=2)

button0.grid(row=4, column=0)

c+ ++ +-

button_clear.grid(row=4, column=1, columnspan = 2) button_add.grid(row=5, column=0) button_equal1.grid(row=5, column=1, columnspan = 2)

button_subtract.grid(row = 6, column = 0) button_multiply.grid(row = 6, column = 1) button_divide.grid(row = 6, column = 2)

root.mainloop()

Built With

• pygame
• python