#My first ever GUI App using Tkinter from tkinter import * from math import sqrt from math import pi
root = Tk() root.title("Basic Calculator") root.iconbitmap("cal_image.GIF")
inputArea = Entry(root, width=20, borderwidth=12, justify="right", font="bold") inputArea.grid(row=0, column=0, columnspan=4, padx=10, pady=10)
def button_click(num): current = inputArea.get() inputArea.delete(0, END) inputArea.insert(END, str(current) + str(num))
def button_sqrt(): current = inputArea.get() inputArea.delete(0, END) inputArea.insert(0, (sqrt(eval(current))))
def button_pi(): inputArea.delete(0, END) inputArea.insert(0, pi)
def button_clear(): inputArea.delete(0, END)
def button_del(): try: number = str(inputArea.get()) inputArea.delete(0, END) inputArea.insert(0, number.rstrip(number[-1])) except IndexError: pass
def button_equal(): answer = eval(inputArea.get()) inputArea.delete(0, END) inputArea.insert(0, answer)
button_1 = Button(root, text="1", padx=20, pady=10, command=lambda: button_click(1)) button_2 = Button(root, text="2", padx=20, pady=10, command=lambda: button_click(2)) button_3 = Button(root, text="3", padx=20, pady=10, command=lambda: button_click(3)) button_4 = Button(root, text="4", padx=20, pady=10, command=lambda: button_click(4)) button_5 = Button(root, text="5", padx=20, pady=10, command=lambda: button_click(5)) button_6 = Button(root, text="6", padx=20, pady=10, command=lambda: button_click(6)) button_7 = Button(root, text="7", padx=20, pady=10, command=lambda: button_click(7)) button_8 = Button(root, text="8", padx=20, pady=10, command=lambda: button_click(8)) button_9 = Button(root, text="9", padx=20, pady=10, command=lambda: button_click(9)) button_0 = Button(root, text="0", padx=20, pady=10, command=lambda: button_click(0))
button_point = Button(root, text=".", padx=20, pady=7, font="bold", command=lambda: button_click('.')) button_sub = Button(root, text="-", padx=21.4, pady=10, bg="grey", command=lambda: button_click("-")) button_add = Button(root, text="+", padx=20, pady=10, bg="grey", command=lambda: button_click('+')) button_div = Button(root, text="÷", padx=20, pady=10, bg="grey", command=lambda: button_click('/')) button_mul = Button(root, text="×", padx=20, pady=10, bg="grey", command=lambda: button_click('*')) button_sqrt = Button(root, text="√", padx=18, pady=10, bg="powder blue", command=button_sqrt) button_pi = Button(root, text="π", padx=15, pady=8, bg="powder blue", font="bold", command=button_pi) button_clear = Button(root, text="AC", padx=10, pady=8, bg="powder blue", font="bold", command=button_clear) button_del = Button(root, text="del", padx=12, pady=8, bg="powder blue", font="bold", command=button_del) button_equal = Button(root, text="=", padx=18, pady=7, font="bold", fg="blue", command=button_equal)
button_1.grid(row=4, column=0) button_2.grid(row=4, column=1) button_3.grid(row=4, column=2) button_sub.grid(row=4, column=3) button_4.grid(row=3, column=0) button_5.grid(row=3, column=1) button_6.grid(row=3, column=2) button_7.grid(row=2, column=0) button_8.grid(row=2, column=1) button_9.grid(row=2, column=2) button_0.grid(row=5, column=0) button_point.grid(row=5, column=1) button_equal.grid(row=5, column=2) button_add.grid(row=5, column=3) button_div.grid(row=3, column=3) button_mul.grid(row=2, column=3) button_pi.grid(row=1, column=1) button_clear.grid(row=1, column=2) button_del.grid(row=1, column=3) button_sqrt.grid(row=1, columnspan=1, column=0)
root.mainloop()