Django urls.py: passing dynamic url parameter into include() - django

Question

I found in Django docs (https://docs.djangoproject.com/en/3.0/topics/http/urls/#passing-extra-options-to-include) that I can pass any constant into include() statement. Here in docs' example we are passing blog_id=3.
from django.urls import include, path
urlpatterns = [
path('blog/', include('inner'), {'blog_id': 3}),
]
But what if I want to pass dynamic url parameter into include()? I mean something like this:
from django.urls import include, path
urlpatterns = [
path('blog/<int:blog_id>/', include('inner'), {'blog_id': ???}),
]
Is it possible?

Answer 1

You do not specify the kwargs, so you write:
from django.urls import include, path
urlpatterns = [
# no { 'blog_id': … }
path('blog/<int:blog_id>/', include('inner')),
]
The url parameter will be passed to the kwargs of the included views.
This is to some extent discussed in the documentation on Including other URLconfs where it says:
(…) For example, consider this URLconf:
from django.urls import path
from . import views
urlpatterns = [
path('<page_slug>-<page_id>/history/', views.history),
path('<page_slug>-<page_id>/edit/', views.edit),
path('<page_slug>-<page_id>/discuss/', views.discuss),
path('<page_slug>-<page_id>/permissions/', views.permissions),
]
We can improve this by stating the common path prefix only once and
grouping the suffixes that differ:
from django.urls import include, path
from . import views
urlpatterns = [
path('<page_slug>-<page_id>/', include([
path('history/', views.history),
path('edit/', views.edit),
path('discuss/', views.discuss),
path('permissions/', views.permissions),
])),
]