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


    urlpatterns = [
        url(r'^$', views.index, name='index'),
    ]
views.py of app is
from django.shortcuts import render


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

from django.conf.urls import include, url
from django.contrib import admin
from app.views import index

urlpatterns = [
    url(r'^admin/', include(admin.site.urls)),
    url(r'^$', index, name='index'),
]