text: from tkinter import *
  from keyboard import render as render_keyboard
  
  # Window
  root = Tk()
  root.title("Mac calculator app with Python")
  root.config(background='red')
  
  # Frame
  calculator = Frame(root)
  calculator.configure(background='#333333')
  calculator.pack()
  
  # Default data for the screen
  data = StringVar()
  
  # Screens
  screen = Entry(calculator, textvariable=data, highlightbackground="#333333", highlightthickness=2, bd=0)
  screen.grid(row=0, column=0, columnspan=4, ipady=14)
  screen.config(background='#333333', fg='#ececec', justify='right', font=('Verdana', 18))
  screen.insert(0, '0')
  
  # Buttons
  buttons = render_keyboard(data, calculator)
  
  # Infinity loop for the window
  root.mainloop()