old_contents: from .settings import *
  import os
  import dj_database_url
  
  # DEBUG = False
  DEBUG = bool(int(os.environ.get('DEBUG', True)))
  SECRET_KEY = os.environ['SECRET_KEY']
  
  BLACKLIST_APPS = ['debugtoolbar', 'django_extensions']
  
  INSTALLED_APPS = tuple([app for app in INSTALLED_APPS if app not in BLACKLIST_APPS])
  
  DATABASES['default'] = dj_database_url.config()
  
  SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
  
  ALLOWED_HOSTS = ['*']
  
  # Static asset configuration
  BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
  # BASE_DIR = os.path.dirname(os.path.abspath(__file__))
  STATIC_ROOT = 'staticfiles'
  STATIC_URL = '/static/'
  
  STATICFILES_STORAGE = 'whitenoise.django.GzipManifestStaticFilesStorage'
  
new_contents: from .settings import *
  import os
  import dj_database_url
  
  # DEBUG = False
  DEBUG = bool(int(os.environ.get('DEBUG', True)))
  SECRET_KEY = os.environ['SECRET_KEY']
  
  BLACKLIST_APPS = ['debugtoolbar', 'django_extensions']
  
  INSTALLED_APPS = tuple([app for app in INSTALLED_APPS if app not in BLACKLIST_APPS])
  
  DATABASES['default'] = dj_database_url.config()
  
  SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
  
  ALLOWED_HOSTS = ['*']
  
  # Static asset configuration
  BASE_DIR = os.path.dirname(os.path.abspath(__file__))
  STATIC_ROOT = 'staticfiles'
  STATIC_URL = '/static/'
  
  STATICFILES_STORAGE = 'whitenoise.django.GzipManifestStaticFilesStorage'
  
subject: undo of changes