```
from __future__ import annotations
from typing import Generic, TypeVar
T = TypeVar("T")
class Foo(Generic[T]): ...
class Bar(Foo[Buzz]): ... # NameError here
class Buzz: ...
```
This will error, despite the __future__ import, because cpython is trying
to look up Buzz before it's defined, even
Should mention this also affects Protocol[Buzz]
On Fri, Jun 30, 2023, 5:35 PM Joseph Garvin wrote:
> ```
> from __future__ import annotations
> from typing import Generic, TypeVar
>
> T = TypeVar("T")
> class Foo(Generic[T]): ...
> class Bar(Foo[Buzz]): ... # NameError here
> class Buzz: ...
> `
