randocat.py

import sys
from wsgiref.simple_server import make_server
from pyramid.config import Configurator
from pyramid.response import Response
CAT_DATABASE = [
    'https://s7d1.scene7.com/is/image/PETCO'
    '/cat-category-090617-369w-269h-hero-cutout-d'
]
PAGE_HTML = '''
<img src="{image_url}">
'''
PORT = 8080
logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
def view_random_cat(request):
    cat_url = CAT_DATABASE[0]
    return Response(PAGE_HTML.format(image_url=cat_url))

if __name__ == '__main__':
    with Configurator() as config:
        config.add_route('hello', '/')
        config.add_view(view_random_cat, route_name='hello')
        app = config.make_wsgi_app()
    server = make_server('0.0.0.0', PORT, app)
    logging.info('%s now running on port %s!', sys.argv[0], PORT)
    server.serve_forever()