Why doesn't it open links?

Question

Django

A question from the category of stupid, but incomprehensible for a beginner.
I made such a simple site on which there are several links, when you click on these links, a new page opens, the question is why when I open some link, for example "News" and then I want to open "Posts" or go back, it gives error. Why does it roughly say "127.0.0.1:8000/news.html/post.html" and not immediately "127.0.0.1:8000/post.html/" ?
urls.py

from django.conf.urls import url, include
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^', include('users.urls')),
    url(r'^news.html/$', include('users.urls')),
    url(r'^post.html/$', include('users.urls')),
]

urls.py application

from django.conf.urls import url, include
from . import views

urlpatterns = (
    url(r'^$', views.index, name='index'),
    url(r'^news.html/$', views.news, name='news'),
    url(r'^post.html/$', views.post, name='post'),
)

views.py

from django.shortcuts import render
from django.http import HttpResponse
# Create your views here.

def hello(request):
    return HttpResponse('asdasd')

def index(request):
    return render(request, 'mainApp/index.html')

def news(request):
    return render(request, 'mainApp/news.html')

def post(request):
    return render(request, 'mainApp/post.html')

def result(request):
    return render(request, 'mainApp/result.html')

def info(request):
    return render(request, 'mainApp/info.html')

def contact(request):
    return render(request, 'mainApp/contact.html')

def auth(request):
    return render(request, 'mainApp/auth.html')

def reg(request):
    return render(request, 'mainApp/reg.html')

Answer 1

Show markup. Wang that there are no slashes in the links.
And do not post the code in pictures, it is prohibited by the rules and generally indecent.