class Config(object):
    DEBUG = False
    TESTING = False
    SECRET_KEY = "B\xb2?.\xdf\x9f\xa7m\xf8\x8a%,\xf7\xc4\xfa\x91"
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    SQLALCHEMY_DATABASE_URI = 'sqlite:///blog.db'

class ProductionConfig(Config):
    pass

class DevelopmentConfig(Config):
    DEBUG = True

class TestingConfig(Config):
    TESTING = True