اعداد به توان 2

#With user interface
from tkinter import *

def calculate():
    if number_entry.get() == 0:
        window.destroy()
    power_two_label.config(text=float(number_entry.get())**2)

window = Tk()
enternumber_label = Label(window,text="Enter a number")
number_entry = Entry(window)
power_two_label = Label(window,text="")
calculate_button = Button(window,text="Calculate",command=calculate)
enternumber_label.pack()
number_entry.pack()
power_two_label.pack()
calculate_button.pack()
window.mainloop()

#Without user interface
while True:
    try:
        number = float(input("Enter a number : "))
    except ValueError:
        print("You can just enter number!")
    if number == 0:
        break
    print(number**2) 

while True:
    num = int(input("عدد را وارد کنید (برای خروج 0 را وارد کنید): "))
    if num == 0:
        break
    print(num ** 2)

while 1:
     num = int(input("adadi ke mikhahid be tavan 2 shavad ra vared konid: "))
     if num == 0:
          break
     print(num**2)