Hi I have an infuriating problem.
I have a url pattern like this:
# mproject/myapp.urls.py
url(r'^project/(?P<project_id>\d+)/$','user_profile.views.EditProject',name='edit_project'),
it works fine in the browser but for testing, when I do this in the shell:
from django.test import Client
from django.core.urlresolvers import reverse
client= Client()
response = client.get(reverse('edit_project'), project_id=4)
I get the dreaded:
NoReverseMatch: Reverse for 'edit_project' with arguments '()' and keyword arguments '{}' not found.
What am I missing here?
The solution @miki725 is absolutely correct. Alternatively, if you would like to use the args attribute as opposed to kwargs, then you can simply modify your code as follows:
project_id = 4
reverse('edit_project', args=(project_id,))
An example of this can be found in the documentation. This essentially does the same thing, but the attributes are passed as arguments. Remember that any arguments that are passed need to be assigned a value before being reversed. Just use the correct namespace, which in this case is 'edit_project'.
This problems gave me great headache when i tried to use reverse for generating activation link and send it via email of course. So i think from tests.py it will be same. The correct way to do this is following:
from django.test import Client
from django.core.urlresolvers import reverse
#app name - name of the app where the url is defined
client= Client()
response = client.get(reverse('app_name:edit_project', project_id=4))
Resolve is also more straightforward
from django.urls import resolve
resolve('edit_project', project_id=4)
来源：https://stackoverflow.com/questions/13202385/django-reverse-with-arguments-and-keyword-arguments-not-found