5．urls.py

from django.urls import path, include
from django.contrib import admin  // contribはcontribute（提供する）の略でDjangoが提供している機能
from django.conf import settings  // confはconfiguration（設定）の略
from django.conf.urls.static import static

urlpatterns = [
    path('admin', admin.site.urls),
    path('', include('[任意のアプリ名].urls')),
]
urlpatterns += static(
    settings.MEDIA_URL,
    document_root=settings.MEDIA_ROOT
)

from django.urls import path
from django.contrib.auth import views as auth_views
from . import views

app_name = '[任意のアプリ名]'
urlpatterns = [
    path('', views.index, name='index'),
    path('new', views.new, name='new'),
    path('detail/<int:id>', views.detail, name='detail'),
    path('delete/<int:id>', views.delete, name='delete'),
    path('edit/<int:id>', views.edit, name='edit'),
]

Djangoがインストールされていません
cd [任意のプロジェクト名]
pip install django
pip install django-cleanup
をしてください