#32402: django.urls resolve does not resolve typed paths, like <int:pk>
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Reporter: HM | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 3.1
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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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`.)
--
Ticket URL: <https://code.djangoproject.com/ticket/32402>
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