Django lorem pixels

lorem_pixels.py

import os,urllib
from random import choice
from django.conf import settings

TYPES = [
    'abstract',
    'city',
    'people',
    'transport',
    'animals',
    'food',
    'nature',
    'business',
    'nightlife',
    'sports',
    'cats',
    'fashion',
    'technics'
]


def get_images(width=256, height=256, count=10, types=TYPES):
    images = []
    image_folder = os.path.join(getattr(settings, 'MEDIA_ROOT'))

    for x in xrange(count):
        image_name = "{0}-{1}-{2}".format(width, height, choice(types))
        image = {
            'url': 'http://lorempixel.com/%s/' % image_name.replace('-', '/'),
            'width': width,
            'height': height,
            'filepath': os.path.join('lorem_pixels', image_name+'.jpg')
        }
        full_path = os.path.join(image_folder, image['filepath'])

        if not os.path.exists(full_path):
            urllib.urlretrieve(image['url'], full_path)

        images.append(image)

    return images