jezdez/django-avatar — pull request #79 by bazerk (2014-02-24 15:27:26+00:00)
Title: Django allows @ for usernames, so the render_primary url pattern should also

We found this on a site where a user registered with an @ in their username, as the regex doesn't include @ (which is valid for django usernames) the URL didn't resolve for avatar_render_primary.