text: import os
  from dotenv import load_dotenv
  load_dotenv()
  
  
  class BaseConfig:
      TESTING = False
      CSRF_ENABLED = True
      SQLALCHEMY_TRACK_MODIFICATIONS = False
      SQLALCHEMY_DATABASE_URI = os.getenv('POPTRACKER_DB_URI', 'postgresql+psycopg2://localhost/poptracker')
  
  
  class Development(BaseConfig):
      DEBUG = True
  
  
  class Production(BaseConfig):
      DEBUG = False
  
  
  class Test(BaseConfig):
      TESTING = True
      DEBUG = True
      SQLALCHEMY_DATABASE_URI = BaseConfig.SQLALCHEMY_DATABASE_URI + '_test'
  