old_contents: class Config(object):
      """
      Common configurations
      """
  
      # Put any configurations here that are common across all environments
  
  
  class DevelopmentConfig(Config):
      """
      Development configurations
      """
  
      DEBUG = True
      SQLALCHEMY_ECHO = True
  
  
  class ProductionConfig(Config):
      """
      Production configurations
      """
  
      DEBUG = False
  
  app_config = {
      'development': DevelopmentConfig,
      'production': ProductionConfig
  }
  
new_contents: class Config(object):
      """
      Common configurations
      """
  
      # Put any configurations here that are common across all environments
  
      # Testint database - do not use in production
      SQLALCHEMY_DATABASE_URI = 'sqlite:proptrunk.db'
  
  
  class DevelopmentConfig(Config):
      """
      Development configurations
      """
  
      DEBUG = True
      SQLALCHEMY_ECHO = True
  
  
  class ProductionConfig(Config):
      """
      Production configurations
      """
  
      DEBUG = False
  
  app_config = {
      'development': DevelopmentConfig,
      'production': ProductionConfig
  }
  
subject: Update database string