Method __delete__

src/werkzeug/_internal.py:186–190

(self, instance: t.Any)

            self.lookup(instance)[self.name] = value

    def __delete__(self, instance: t.Any) -> None:
        if self.read_only:
            raise AttributeError("read only property")

        self.lookup(instance).pop(self.name, None)

    def __repr__(self) -> str:
        return f"<{type(self).__name__} {self.name}>"