Python Web Scraping Cookbook

How it works

The ImageThumbnailGenerator class wraps calls to Pillow to provide a very simple API for creating a thumbnail for an image:

import iofrom PIL import Imageclass ImageThumbnailGenerator():    def __init__(self, bytes):        # Create a pillow image with the data provided        self._image = Image.open(io.BytesIO(bytes))    def scale(self, width, height):        # call the thumbnail method to create the thumbnail        self._image.thumbnail((width, height))        return self    @property    def bytes(self):        # returns the bytes of the pillow image        # save the image to an in memory objects        bytesio = io.BytesIO()        self._image.save(bytesio, format="png")

        # set the position on the stream to 0 and return the underlying data        bytesio.seek(0)        return bytesio.getvalue()

The constructor ...