> but does this mean that even with PEP 649 that forward references will
> still be needed?
Yes. Both of PEP 563 and PEP 649 solves not all forward reference issues.
--
Inada Naoki
--
https://mail.python.org/mailman/listinfo/python-list
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: ...
> `
```
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
Yesterday I wanted to move from optimize.leastsq to
least_squares. I have data depending on four variables
and want to fit a function in four variables to this
data. This works with leastsq but not with least_squares.
Am I trying to do something least_squares is not capable
of?
Disclaimer: I was
