URL Generation Failing

[ne...@vidyasource.com]

I have created a custom inclusion tag in an app called "popular_keywords" that generates a collection of links that function like search queries. So for example, I would like this

<li><a href="{% url "matching_items" keyword=keyword %}">{{ keyword }}</a></li>

to generate 

<li><a href="/search/?q=Cake}">Cake</a></li>

I have the tag working correctly in terms of generating most of the content, but the url generation leads to 

NoReverseMatch at /

Reverse for 'matching_items' with arguments '()' and keyword arguments '{u'keyword': 'Cake'}' not found.

What's weird is I have pretty much borrowed all the Mezzanine code to make this work, and no one on the Django forum can figure out the problem.

In the popular_keywords app, I have this in views.py:

def matching_items_list(request, keyword=None, template="popular_keywords/keyword_matched_list.html"):

    settings.use_editable()

    templates = []

    blog_posts = BlogPost.objects.published(for_user=request.user)

    if keyword is not None:

        keyword = get_object_or_404(Keyword, slug=keyword)

        blog_posts = blog_posts.filter(keywords__in=keyword.assignments.all())

    prefetch = ("keywords__keyword")

    blog_posts = blog_posts.select_related("user").prefetch_related(*prefetch)

    blog_posts = paginate(blog_posts, request.GET.get("page", 1),

                          settings.BLOG_POST_PER_PAGE,

                          settings.MAX_PAGING_LINKS)

    context = {"blog_posts": blog_posts, "keyword": keyword}

    templates.append(template)

    return render(request, templates, context)

And this is urls.py

urlpatterns = patterns("apps.popular_keywords.views",

                       url("^%skeyword/(?P<keyword>.*)%s$" % _slashes, "matching_items_list",

                           name="matching_items")

)

These were modeled after Mezzanine code in blog_post_list and this url function in Mezzanine

url("^%stag/(?P<tag>.*)%s$" % _slashes, "blog_post_list",

        name="blog_post_list_tag")

Yet my call to the url function is failing as described above. I am curious if there is some Mezzanine magic I need to add to accomplish correct URL generation.

Thanks.