old_contents: import os
  
  
  DEBUG = True
  
  # Application directory
  BASE_DIR = os.path.abspath(os.path.dirname(__file__))
  
  
  SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(BASE_DIR,
                                                        'routes_api.db')
  SQLALCHEMY_MIGRATION_REPO = os.path.join(BASE_DIR, 'db_repository')
  
new_contents: import os
  
  
  DEBUG = True
  
  # Application directory
  BASE_DIR = os.path.abspath(os.path.dirname(__file__))
  
  DATABASE = os.path.join(BASE_DIR, 'routes_api.db')
  SQLALCHEMY_DATABASE_URI = 'sqlite:///' + DATABASE
  SQLALCHEMY_MIGRATION_REPO = os.path.join(BASE_DIR, 'db_repository')
  SQLALCHEMY_TRACK_MODIFICATIONS = True
  
subject: Add SQLALCHEMY_TRACK_MODIFICATIONS config in order to prevent warning from showing