[stubtest] ignore __conditional_annotations__

[jorenham]

On Python 3.14, this module attribute seems to exist in certain situations:

>>> if True:
...     a: str
...     
>>> __conditional_annotations__
{0}

It's a pretty esoteric attribute without any documentation. It seems to have been added in python/cpython#130935

Either way, stubtest was complaining about it in scipy-stubs. So all things considered, I figured it'd be best to just ignore it.

[jungerm2]

I'm getting a module.__conditional_annotations__ is not present in stub error, when using mypy 1.19.1 in python 3.14.0. That mypy version was released just a few days after this fix was merged in, does it not contain it? Is there a temporary fix in the meantime I could use?

[jorenham]

1.19.1 indeed doesn't this: https://github.com/python/mypy/commits/v1.19.1/

Is there a temporary fix in the meantime I could use?

You could annotate it, or put it in an allowlist.

[jungerm2]

Any workaround until the next release?

[jorenham]

Like I said, you could annotate it, or put it in an allowlist.
Here's what I did in scipy-stubs: https://github.com/scipy/scipy-stubs/blob/423767dd63020d29de36ed63278d3ed1f03d47ab/scipy-stubs/special/_add_newdocs.pyi#L5-L7