python - NoReverseMatch error when using Django url template tag with optional parameters, but NOT when visiting the URL in the browser -

python - NoReverseMatch error when using Django url template tag with optional parameters, but NOT when visiting the URL in the browser -

i have url needs business relationship next patterns:

localhost:8000/staffing-agencies localhost:8000/staffing-agencies/90210 (zip code) localhost:8000/staffing-agencies/portland-or (city-state)

when type in of these urls in browser, work expected. however, i'm getting noreversematch error when seek refer url django's url template tag.

here relevant url.py files:

# urls.py urlpatterns = patterns('', url(r'^', include('bos.apps.search.urls', namespace='search', app_name='search')), ) # search/urls.py urlpatterns = patterns('bos.apps.search', url(r'^staffing-agencies/' r'((?p<city>[a-za-z]+)-(?p<state>[a-za-z]{2}))?' r'((?p<zip>[0-9]{5}))?$', 'views.main', name='main'), )

i thought might optional parameters, of these variances throw noreversematch error:

<a href="{% url "search:main" zip=97214 %}">test</a> <a href="{% url "search:main" city="portland" state="or" %}">test</a>

this variance not throw error:

<a href="{% url "search:main" %}">test</a>

i'm using django 1.6.5

this not improve solution, 1 of solution

url(r'^staffing-agencies/(?p<city>[a-za-z]+)*-(?p<state>[a-za-z]{2})*?(?p<zip>[0-9]{5})*?$', 'views.main', name='main'),

in views:

def main(request, city=none, state=none, zip=none):

in html:

<a href="{% url "search:main" city='sadasd' state='ds' zip=12345 %}">test</a>

in case url work this,

localhost:8000/staffing-agencies localhost:8000/staffing-agencies/-90210 (zip code) localhost:8000/staffing-agencies/portland-or (city-state)

python django url django-templates