How to pass url parameter to reverse_lazy in Django urls.py

I wouldn’t do this directly in the urls.py, I’d instead use the class-based RedirectView to calculate the view to redirect to:

from django.views.generic.base import RedirectView
from django.core.urlresolvers import reverse_lazy

class RedirectSomewhere(RedirectView):
    def get_redirect_url(self, param):
        return reverse_lazy('resource-view',
                            kwargs={'param': param},
                            current_app='myapp')

Then, in your urls.py you can do this:

urlpatterns = patterns('',
    url(r'^coolresource/(?P<param>\d+)/$', 
        RedirectSomewhere.as_view()),
)