Hello, world is now working

dnd_db_site/settings.py

@@ -19,14 +19,14 @@ BASE_DIR = Path(__file__).resolve().parent.parent
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/4.0/howto/deployment/checklist/
 
-# SECURITY WARNING: keep the secret key used in production secret!
-import os
-SECRET_KEY = os.environ['SECRET_KEY']
+import environ
+env = environ.Env()
+environ.Env.read_env()
+SECRET_KEY = env('SECRET_KEY')
 
-# SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = False
 
-ALLOWED_HOSTS = []
+ALLOWED_HOSTS = [env('HOST_1')]
 
 
 # Application definition

dnd_db_site/urls.py

@@ -14,8 +14,9 @@ Including another URLconf
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.contrib import admin
-from django.urls import path
+from django.urls import include, path
 
 urlpatterns = [
     path('admin/', admin.site.urls),
+    path('', include('polls.urls')),
 ]

polls/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

polls/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class PollsConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'polls'

polls/models.py

@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.

polls/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

polls/urls.py

@@ -0,0 +1,8 @@
+from django.urls import path
+
+from . import views
+
+urlpatterns = [
+    path('', views.index, name='index'),
+]
+

polls/views.py

@@ -0,0 +1,5 @@
+from django.http import HttpResponse
+
+def index(request):
+    return HttpResponse('<b>Hallo, Welt!</b>')
+