gistfile1.txt

from PIL import Image

if self.thumbnail:
                try:
                    image = Image.open(self.thumbnail.path)
                    (width, height) = image.size
                    "Max width and height 800"
                    if (700 / width < 471 / height):
                        factor = 471 / height
                    else:
                        factor = 700 / width
                    size = (width / factor, height / factor)
                    image = image.resize(size, Image.ANTIALIAS)
                    image.save(self.thumbnail.path)
                except Exception:
                    # TODO log
                    pass