Serve random non-nsfw anime wallpaper from wallhaven to localhost:42424/img

img-serve.py

from flask import Flask, redirect
from random import choice
from pyquery import PyQuery as pq
app = Flask(__name__)

usable_images = []

for page in range(1, 10):
    d = pq(url='https://alpha.wallhaven.cc/search?categories=010&purity=100&ratios=16x9&sorting=views&order=desc&page=%d' % page)
    usable_images.extend(list(d.find('[data-wallpaper-id]').map(lambda _, x: x.attrib['data-wallpaper-id'])))


@app.route('/img')
def img():
    url = None
    while url is None:
        url = 'https://wallpapers.wallhaven.cc/wallpapers/full/wallhaven-%s.jpg' % choice(usable_images)
        try:
            pq(url)
        except Exception:
            url = None

    return redirect(url)


app.run()