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How to add custom django admin site and urls without the prefix in every pattern?

I am trying to include the urls of my custom admin site of one of my apps in a Django project. I would like the path to be foo-admin/.... I managed to do so by including this prefix in all urlpatterns in the app's urls.py. However if I try to add the prefix to the project's urls.py and have only the suffixes in the app's urls, it breaks. It's something like this:
This works:
Project's urls.py
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('my_app.urls')),
]
my_app/urls.py:
urlpatterns = [
path('foo-admin/', my_app_admin_site.urls),
path('foo-admin/foo/', views.some_view),
path('foo-admin/foo/<slug>/', views.MyGenericView.as_view()),
]
This doesn't work:
Project's urls.py
urlpatterns = [
path('admin/', admin.site.urls),
path('foo-admin/', include('my_app.urls')),
]
my_app/urls.py
urlpatterns = [
path('', my_app_admin_site.urls),
path('foo/', views.some_view),
path('foo/bar/<slug>/', views.MyGenericView.as_view()),
]
The error I'm encountering is:
NoReverseMatch at /foo-admin/
Reverse for 'app_list' with keyword arguments '{'app_label': 'my_app'}' not found. 1 pattern(s) tried: ['admin/(?P<app_label>auth|app1|app2|django_mfa|axes)/$']

Django 2 namespace and app_name

I am having a difficult time understanding the connection between app_name and namespace.
consider the project level urls.py
from django.urls import path, include
urlpatterns = [
path('blog/', include('blog.urls', namespace='blog')),
]
consider the app level (blog) urls.py
from django.urls import path
from . import views
app_name = 'blog'
urlpatterns = [
path('', views.post_list, name='post_list'),
path('<int:year>/<int:month>/<int:day>/<slug:post>/', views.post_detail, name='post_detail'),
]
if I comment out app_name, I get the following.
'Specifying a namespace in include() without providing an app_name '
django.core.exceptions.ImproperlyConfigured: Specifying a namespace in include() without providing an app_name is not supported. Set the app_name attribute in
the included module, or pass a 2-tuple containing the list of patterns and app_name instead.
If I rename app_name to some arbitrary string, I don't get an error.
app_name = 'x'
I've read the documentation but its still not clicking. Can someone tell me how/why app_name and namespace are connected and why are they allowed to have different string values? Isn't manually setting app_name redundant?

try removing app_name='blog'
In your case you should be using:
'blog:post_list'
and
'blog:post_detail'
You can also remove the namespace='blog' in your first url like so:
urlpatterns = [
path('blog/', include('blog.urls')),
]
and then in your templates you can reference the urls without the 'blog:.....':
'post_list'
'post_detail'

try using tuple.
urlpatterns = [
path('blog/', include(('blog.urls', 'blog'))),
]

I can not run server Django 2.0

Hello I'm having a problem when trying to run server from an Django 2.0 old project.
this is the error:
File "/usr/lib/python3.7/site-packages/django/urls/conf.py", line 39, in include
'Specifying a namespace in include() without providing an app_name
django.core.exceptions.ImproperlyConfigured: Specifying a namespace in include() without providing an app_name is not supported. Set the app_name attribute in the included module, or pass a 2-tuple containing the list of patterns and app_name instead.'
this is my urls.py
from django.conf.urls import url, include
from django.contrib import admin
from apps.sysgrub.views import LoginUser, LogoutUser
app_name = 'apps'
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^alumno/', include ('apps.alumno.urls', namespace="alumno")),
url(r'^grupo/', include ('apps.grupo.urls', namespace="grupo")),
url(r'^maestro/', include ('apps.maestro.urls', namespace="maestro")),
url(r'^rol/', include ('apps.rol.urls', namespace="rol")),
url(r'^sysgrub/', include ('apps.sysgrub.urls', namespace="sysgrub")),
url(r'^$', LoginUser),
url(r'^logout/$', LogoutUser),
]
and my urls by app
urlpatterns = [
url(r'^index$', index),
url(r'^horarios$', horarios),
url(r'^listar$', Alumno_grupoList.as_view(), name='alumno_listar'),
url(r'^agregar$', AlumnoCreate.as_view(), name='add_student'),
]
thank you so much for your help greetings.

The error describes the resolution please remove app name from the urls.py as below
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^alumno/', include ('alumno.urls', namespace="alumno")),
url(r'^grupo/', include ('grupo.urls', namespace="grupo")),
]

How to include app urls to project urls in Django 1.8?

I have just started with django now and was configuring urls. I am able to map different urls like /posts, /posts/create etc. Somehow I am not able to configure root url, I am not sure what wrong I am doing. Here is my configuration :
urlpatterns = [
# Examples:
url(r'',homeViews.posts),
# url(r'^blog/', include('blog.urls')),
url(r'^posts/',homeViews.posts),
url(r'^createPost/',homeViews.createPost),
url(r'^createUser/',userViews.createUser),
url(r'^post/(?P<title>[a-z,A-Z]+)/$',homeViews.post),
]`
Cheers!

here is an example, my friend.
from django.conf.urls import include, url
from django.contrib import admin
urlpatterns = [
url(r'^admin/', include(admin.site.urls)),
url(r'^$', 'home.views.home',name='index'),
url(r'^contactanos/$', 'home.views.contacto',name='contacto'),
url(r'^post/$', 'home.views.blog',name='blog')
]

Django admin custom view and urls

I'm new to Django and I currently have two problems that I can't figure out from reading online:
URLs... I have an app 'cq' and the project is 'mysite' here is what I have in mysite's urls.py
urlpatterns = [
url(r'^cq/', include('cq.urls')),
url(r'^admin/', include(admin.site.urls)),
]
and this is what I have in cq's urls.py
urlpatterns = [
url(r'^$', views.index, name='index'),
url(r'^(?P<team_id>[0-9]+)/$', views.team, name='team'),
]
However I don't want do to cq/team_id. I just want to be able to go directly to /team_id. Is there any way to do it?
I want an entry in the admin view of the database to look very custom, i.e. I want to write my own html.. How do I do it?
Thanks!

When you define
url(r'^cq/', include('cq.urls')),
it means all urls in cq.urls will have to start with cq/. For you case, just do
urlpatterns = [
url(r'^cq/', include('cq.urls')),
url(r'^admin/', include(admin.site.urls)),
url(r'^(?P<team_id>[0-9]+)$', views.team, name='team') #without trailing slash for /team_id, but with for /team_id/
]
Of course, you don't need this rule anymore in cq urls.py