| from dataclasses import * | |
| class D: | |
| """A descriptor class that knows its name.""" | |
| def __set_name__(self, owner, name): | |
| self.name = name | |
| def __get__(self, instance, owner): | |
| if instance is not None: | |
| return 1 | |
| return self | |
| from dataclasses import * | |
| @dataclass | |
| class C: | |
| d: int = field(default=D(), init=False) | |
| @dataclass | |
| class E(C): | |
| e: int = field(default=D(), init=False) |