pac

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# PACK

import tkinter as tk
from tkinter import ttk

ventana = tk.Tk()
ventana.title("Grid")
ventana.config(width=400, height=600)

caja = ttk.Entry()
caja.pack(expand=True, fill=tk.BOTH)

boton = ttk.Button(text='HOLA')
boton.pack(padx=50, pady=75, ipadx=50, ipady=100)

label = ttk.Label(text="CHAU")
label.pack(before=boton)




ventana.mainloop()