old_contents: import os
  
  
  if os.environ.get('DATABASE_URL') is None:
      SQLALCHEMY_DATABASE_URI = 'sqlite:///meetup.db'
  else:
      SQLALCHEMY_DATABASE_URI = os.environ['DATABASE_URL']
  
  SQLALCHEMY_TRACK_MODIFICATIONS = False  # supress deprecation warning
  
new_contents: import os
  
  
  SQLALCHEMY_DATABASE_URI = os.environ['DATABASE_URL']
  SQLALCHEMY_TRACK_MODIFICATIONS = False  # supress deprecation warning
  
subject: Delete default case for SQLALCHEMY_DATABASE_URI