Update settings.py

project_name/settings.py

@@ -28,16 +28,16 @@ DEBUG = True
 
 # Application definition
 
-INSTALLED_APPS = [
+INSTALLED_APPS = (
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
-]
+)
 
-MIDDLEWARE_CLASSES = [
+MIDDLEWARE_CLASSES = (
     'django.contrib.sessions.middleware.SessionMiddleware',
     'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
@@ -46,11 +46,11 @@ MIDDLEWARE_CLASSES = [
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
     'django.middleware.security.SecurityMiddleware',
-]
+)
 
 ROOT_URLCONF = '{{ project_name }}.urls'
 
-TEMPLATES = [
+TEMPLATES = (
     {
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
         'DIRS': [],
@@ -65,7 +65,7 @@ TEMPLATES = [
             'debug': DEBUG,
         },
     },
-]
+)
 
 WSGI_APPLICATION = '{{ project_name}}.wsgi.application'
 
@@ -80,7 +80,7 @@ DATABASES = {
     }
 }
 
-AUTH_PASSWORD_VALIDATORS = [
+AUTH_PASSWORD_VALIDATORS = (
     {
         'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
     },
@@ -93,7 +93,7 @@ AUTH_PASSWORD_VALIDATORS = [
     {
         'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
     },
-]
+)
 
 # Internationalization
 # https://docs.djangoproject.com/en/1.9/topics/i18n/