<filename>pinax/documents/tests/urls.py
from django.conf.urls import include, url

urlpatterns = [
    url(r"^", include("pinax.documents.urls", namespace="pinax_documents")),
]

<filename>pinax/documents/tests/urls.py
from django.conf.urls import include, url

urlpatterns = [
    url(r"^", include("pinax.documents.urls", namespace="pinax_documents")),
]
