I am trying to learn how to make a GUI so I decided to practice making a calculator. I have all of the number buttons and the ‘+’, ‘-‘, ‘*’, ‘/’ buttons working. I got stuck at the decimal button. When ever I press the button in the GUI it goes into my terminal instead of the text box.
Here is the code:
from tkinter import * root = Tk() root.title("Calculator") e = Entry(root, width=50, bg="light gray", fg="black", borderwidth=3) e.grid(row=0, column=0, columnspan=4, padx=10, pady=10) 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_click(number): 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) deci = "." 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)) if math == ".": e.insert(0, f_num, deci) def button_subtraction(): first_number = e.get() global f_num global math math = "subtraction" f_num = int(first_number) e.delete(0, END) def button_multiplication(): first_number = e.get() global math math = "multiplication" f_num = int(first_number) e.delete(0, END) def button_division(): first_number = e.get() global f_num global math math = "division" f_num = int(first_number) e.delete(0, END) def button_decimal(): first_number = e.get() global f_num global math math = " " f_num = int(first_number) e.delete(0, END) button_1 = Button(root, text="1", padx=40, pady=20, bg="light gray", command=lambda: button_click(1)) button_2 = Button(root, text="2", padx=40, pady=20, bg="light gray", command=lambda: button_click(2)) button_3 = Button(root, text="3", padx=43, pady=20, bg="light gray", command=lambda: button_click(3)) button_4 = Button(root, text="4", padx=40, pady=20, bg="light gray", command=lambda: button_click(4)) button_5 = Button(root, text="5", padx=40, pady=20, bg="light gray", command=lambda: button_click(5)) button_6 = Button(root, text="6", padx=43, pady=20, bg="light gray", command=lambda: button_click(6)) button_7 = Button(root, text="7", padx=40, pady=20, bg="light gray", command=lambda: button_click(7)) button_8 = Button(root, text="8", padx=40, pady=20, bg="light gray", command=lambda: button_click(8)) button_9 = Button(root, text="9", padx=43, pady=20, bg="light gray", command=lambda: button_click(9)) button_0 = Button(root, text=" 0 ", padx=80, pady=20, bg="light gray", command=lambda: button_click(0)) button_subtraction = Button(root, text="-", padx=41, pady=20, bg="light gray", command=button_subtraction) button_multiplication = Button(root, text="×", padx=40, pady=20, bg="light gray", command=button_multiplication) button_division = Button(root, text="÷", padx=40, pady=20, bg="light gray", command=button_division) button_add = Button(root, text="+", padx=40, pady=20, bg="light gray", command=button_add) button_equal = Button(root, text="=", padx=40, pady=20, bg="light gray", command=button_equal) button_clear = Button(root, text="C", padx=40, pady=20, bg="light gray", command=button_clear) button_decimal = Button(root, text=".", padx=44, pady=20, bg="light gray", command=lambda: print(".")) button_percent = Button(root, text="%", padx=41, pady=20, bg="light gray") button_negative = Button(root, text="-", padx=40, pady=20, bg="light gray") button_1.grid(row=4, column=0) button_2.grid(row=4, column=1) button_3.grid(row=4, column=2) 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, columnspan=2) button_clear.grid(row=1, column=0) button_equal.grid(row=5, column=3) button_subtraction.grid(row=3, column=3) button_multiplication.grid(row=2, column=3) button_division.grid(row=1, column=3) button_add.grid(row=4, column=3) button_decimal.grid(row=5, column=2) button_percent.grid(row=1, column=2) button_negative.grid(row=1, column=1) root.mainloop()
Advertisement
Answer
That is beacuse you have coded it in such a way
button_decimal = Button(root, text=".", padx=44, pady=20, bg="light gray", command=lambda: print("."))
See, button_decimal takes a lambda that will print to the console