django.urls resolve does not resolve typed paths, like <int:pk>

[HM]

Resolving typed paths like "<int:pk>" doesn't work, see script to reproduce below.

import os

from django.conf import settings
from django.http import HttpResponse
from django.urls import path, reverse, resolve

fname = os.path.splitext(os.path.basename(__file__))[0]
urlpatterns = [
    path('<int:pk>/', lambda r, **kwargs: HttpResponse('Hello, world!'), name='testurl'),
]

if __name__ == "__main__":
    settings.configure(DEBUG=True, MIDDLEWARE_CLASSES=[], ROOT_URLCONF=fname)

    # Works
    reverse('testurl', kwargs={'pk': 4})

    # Raises Resolver404
    resolve('<int:pk>/')

This holds for Django 2.2, Django 3.0, Django 3.1 and Django 3.2a1.

I've pdb'ed my way into the django code and the problem seems to be that when URLResolver.resolve() gets around to running RoutePattern.match(path), the path looks like "'<int:pk>/'" but the regex it is checked against, stored on the RoutePattern instance, looks like re.compile('^(?P<pk>[0-9]+)/$'), which obviously will never match.

(I'm using resolve() in a unittest to check that manually created views with externally known paths are properly installed in the urlconf. I get the paths to test from django_extensions's show_urls.)

[Mariusz Felisiak]

resolve() can be used for resolving URL path not for resolving URL patterns, e.g. resolve('/6/') works as expected, see ​docs.

Please don't use Trac as a support channel. Closing per TicketClosingReasons/UseSupportChannels.