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Django url template tag ovrwrite the last letter of the base address

When using the URL template tag I checked the source code of the html page and the url appears missing the last letter of the base address, see an example:
...
<li>Products</li>
...
returns
...
<li>Products</li>
...
but the the base address is my-site.com/deck
...
so, why dont returns
...
<li>Products</li>
...
I checked my settings.py and urls.py and didn't see anything wrong, I don't know where else to look
my urls.py
from django.conf import settings
from django.conf.urls.static import static
from django.contrib import admin
from django.urls import include, path, re_path
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('principal.urls')),
path('product/', include('products.urls'), name='product'),
] + static(settings.MEDIA_URL, document_root=settings.STATIC_ROOT)
and the urls.py from app product
from django.urls import path
from . import views
urlpatterns = [
path('', views.ProductHTMxTableView.as_view(), name='products'),
path('product/<int:pk>', views.ProductDetail.as_view(), name='product_detail'),
path('show/', views.ProductShow.as_view(), name='product_show'),
]

django path to view

hey i have a url path that i want to lead me to an application url file
but it says page not found
here is my core url:
from django.contrib import admin
from django.urls import path, include
from django.conf import settings
from django.conf.urls.static import static
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('store.urls', namespace='store')),
path('basket/', include('basket.urls', namespace='basket')),
]
if settings.DEBUG:
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
and here is my basket.url file:
from django.urls import path
from . import views
app_name = 'basket'
urlpatterns = [
path('', views.basket_summary, name='basket_summary'),
]
and this is the view:
from django.shortcuts import render
# Create your views here.
def basket_summary(request):
return render(request, 'store/basket/summary.html')
my app name is basket , and i might add all of the files are defined.
whats the problem ?

You should add a trailing slash after /basket/.
Read more about APPEND_SLASH in the official documentation.

url issues with django

I can't get my urls to work for django no matter what I try
from django.contrib import admin
from django.urls import include, re_path
from django.conf.urls import url
from catalog import views
urlpatterns = [
re_path(r'^admin/', admin.site.urls),
re_path(r'^fruit/?$', views.fruit_catalogue, name='fruit_catalogue'),
re_path(r'^fruit/?$', views.fruit_details),
re_path(r'^fruit/(?P<fruit_id>[1-7]{1})/?$', views.fruit_details),
]

There are 2 url.py files that you should check for the correct functioning of the URLs.
First the one, that is in your project, that should look something like this:
from django.contrib import admin
from django.urls import include, path
from django.conf import settings
urlpatterns = [
path('admin/', admin.site.urls),
path("", include("NAMEOFAPP.urls")),
]
and the other is inside your app. and a simple version of it should look something like this:
from django.urls import path
from . import views
urlpatterns = [
path("home", views.index, name="index"),
path("login", views.login_view, name="login"),
path("register", views.register, name="register")
]
Try to use this same setup and you should be perfectly fine.

django in production enviorment, urls.py only matching empty path i.e " " and nothing else?

Everything works fine on development server but in production server I can only access views.home at https://www.host.com/ and everything else such as
https://www.host.com/b/ or https://www.host.com/tab or https://www.host.com/ext returns status_code 500.
I'm using django 2.1 in python 3.7. Cheers!
Here's the project level urls.py
from django.contrib import admin
from django.urls import path, include
from django.contrib.auth import views as auth_views
from ext.forms import CustomAuthForm
from mysite import settings
from django.contrib.staticfiles.urls import staticfiles_urlpatterns
urlpatterns = [
path('admin/', admin.site.urls),
path('login/', auth_views.LoginView.as_view(authentication_form = CustomAuthForm), name='login'),
path('logout/', auth_views.LogoutView.as_view(next_page= settings.LOGOUT_REDIRECT_URL), name='logout'),
path('', include('ext.urls')),
]
urlpatterns += staticfiles_urlpatterns()
And app level urls.py looks like this
from django.urls import path, re_path
from django.conf.urls import url
from ext import views
from django.contrib import admin
from django.conf import settings
from django.conf.urls.static import static
app_name = 'ext'
urlpatterns = [
path('', views.home, name='home'),
path('int/', views.get_int_status, name='home-load-int'),
path('ext/', views.get_ext_status, name='home-load-ext'),
path('tab/', views.get_tab_status, name='home-load-tab'),
path('b/', views.uzair, name='home-uzair'),
]

I was missing RewriteEngine On in my .httaccess file, what a shame xD

Django URL Does not Exist?

This is very strange, any ideas?:
Here is my code for urls.py
from django.contrib import admin
from django.conf.urls import include
from django.urls import path
urlpatterns = [
path('admin/', admin.site.urls),
path('videos/', include('videos.urls'))
]
And videos/urls.py:
from django.urls import path
from . import views
urlpatterns = [
path(r'^$', views.index, name='index'),
]

Actually, I fixed it! Simple mistake. Change videos\urls.py to this;