title: uuid as keyword argument <pk> in django urls.py
body: <p>I am using a uuid4 as id in some django models. Thats why I cannot use <code>&lt;int:pk&gt;</code> in the <code>urls.py</code> because it wont match. Is there another prefix I can use to match these uuids like <code>a2182835-4518-cb95-8eaf-0d5a34105cb2</code> ?</p>