encrypted.py 文件源码

def __init__(self, type_in=None, key=None, engine=None, **kwargs):
        """Initialization."""
        if not cryptography:
            raise ImproperlyConfigured(
                "'cryptography' is required to use EncryptedType"
            )
        super(EncryptedType, self).__init__(**kwargs)
        # set the underlying type
        if type_in is None:
            type_in = String()
        elif isinstance(type_in, type):
            type_in = type_in()
        self.underlying_type = type_in
        self._key = key
        if not engine:
            engine = AesEngine
        self.engine = engine()