pil-image-thumbnail-method. Simple. Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Creado con Spyder5

Basado en: https://www.geeksforgeeks.org/python-pil-image-thumbnail-method/
"""

from PIL import Image

Original = input('Nombre de la inagen: ')       # /ruta/a/la/imagen.(JPEG, PNG,)
alto = int(input('Ingrese el alto: '))
ancho = int(input('Ingrese el ancho: '))
size = (alto, ancho)
thumb = input('Nombre para el thumbnail: ')     # /ruta/a/la/thumb_imagen.(JPEG, PNG,)


def tnails():
    """

    Size − Required size
    Resample − Optional resampling filter. It can be one of these
    PIL.Image.NEAREST, PIL.Image.BILINEAR, PIL.Image.BICUBIC, or
    PIL.Image.LANCZOS. If omitted, it defaults to PIL.Image.BICUBIC.
    Returns None.

    """
    try:
        image = Image.open(Original)
        image.thumbnail(size)
        image.save(thumb)
        image1 = Image.open(thumb)
        image1.show()
    except IOError:
        pass


tnails()