Django Design Patterns and Best Practices: Industry-standard web development techniques and solutions using Python, 2nd Edition

by Arun Ravindran

# app/templatetags/nav.py from django.core.urlresolvers import resolve from django.template import Library register = Library() @register.simple_tag def active_nav(request, url): url_name = resolve(request.path).url_name if url_name == url: return "active" return ""

Setting a custom template tag