tkinter_grid

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
import tkinter as tk
from tkinter import ttk




ventana = tk.Tk()
ventana.title("Posicionamiento grid")
ventana.config()

caja = ttk.Entry()
caja.grid(row=1, column=1, columnspan=2, sticky="wsen", padx=70, pady=100)


boton = ttk.Button(text="HOLA")
boton.grid(row=2, column=2)


boton2 = ttk.Button(text="OTRO BOTON")
boton2.grid(row=3, column=1, rowspan=2)


boton3 = ttk.Button(text="JAJA")
boton3.grid(row=4, column=4)


ventana.rowconfigure(1, weight=1)
ventana.columnconfigure(1, weight=1)
ventana.mainloop()