old_contents: import os
  
  import dj_database_url
  
  from .base import *  # noqa: F401,F403
  
  
  DEBUG = False
  
  
  # SECURITY WARNING: keep the secret key used in production secret!
  
  SECRET_KEY = os.environ['SECRET_KEY']
  
  
  # Database
  # https://docs.djangoproject.com/en/1.11/ref/settings/#databases
  
  DATABASES = {
      'default': dj_database_url.config(conn_max_age=500)
  }
  
  
  # Email
  
  SENDGRID_USERNAME = os.environ.get('SENDGRID_USERNAME', None)  # noqa: F405
  SENDGRID_PASSWORD = os.environ.get('SENDGRID_PASSWORD', None)  # noqa: F405
  
  # Use SendGrid if we have the addon installed, else just print to console which
  # is accessible via Heroku logs
  if SENDGRID_USERNAME and SENDGRID_PASSWORD:
      EMAIL_HOST = 'smtp.sendgrid.net'
      EMAIL_HOST_USER = SENDGRID_USERNAME
      EMAIL_HOST_PASSWORD = SENDGRID_PASSWORD
      EMAIL_PORT = 587
      EMAIL_USE_TLS = True
      EMAIL_TIMEOUT = 60
  else:
      EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
  
new_contents: import os
  
  import dj_database_url
  
  from .base import *  # noqa: F401,F403
  
  
  DEBUG = os.environ.get('DEBUG', False)
  
  
  # SECURITY WARNING: keep the secret key used in production secret!
  
  SECRET_KEY = os.environ['SECRET_KEY']
  
  
  # Database
  # https://docs.djangoproject.com/en/1.11/ref/settings/#databases
  
  DATABASES = {
      'default': dj_database_url.config(conn_max_age=500)
  }
  
  
  # Email
  
  SENDGRID_USERNAME = os.environ.get('SENDGRID_USERNAME', None)  # noqa: F405
  SENDGRID_PASSWORD = os.environ.get('SENDGRID_PASSWORD', None)  # noqa: F405
  
  # Use SendGrid if we have the addon installed, else just print to console which
  # is accessible via Heroku logs
  if SENDGRID_USERNAME and SENDGRID_PASSWORD:
      EMAIL_HOST = 'smtp.sendgrid.net'
      EMAIL_HOST_USER = SENDGRID_USERNAME
      EMAIL_HOST_PASSWORD = SENDGRID_PASSWORD
      EMAIL_PORT = 587
      EMAIL_USE_TLS = True
      EMAIL_TIMEOUT = 60
  else:
      EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
  
subject: Add a DEBUG environment option to Heroku settings.