kwargs typings are broken

[alon-ba]

With Python 3.10

Following this issue:
#2541 (comment)

I tried to use it, and got 2 bugs:
#2541 (comment)

I also opened a bug for mypy:
python/mypy#18243 (comment)

[rchiodo]

Sorry can you provide the information in this bug instead of adding comments to an older bug? Please reopen when you have the information.

[alon-ba]

I tried to give typings to my kwargs, following this comment:
#2541 (comment)

But - It produced this bug for me:
In the case that my TypedDict is nested - it wouldn't auto-complete the fields of the inner TypedDict, if not all fields of OuterDict are given:

[rchiodo]

Okay thanks. I can reproduce the problem. I believe it's because when inside the inner_dict, it doesn't have a type for inner_dict unless the other keyword is supplied. It can't compute what inner_dict is supposed to be.

[rchiodo]

Here's the code I used:

from typing import Unpack, TypedDict

class InnerDict(TypedDict):
    a: int
    b: str

class OuterDict(TypedDict):
    inner: InnerDict
    field_1: str

def test_inner_dict(**kwargs: Unpack[OuterDict]):
    pass

test_inner_dict(inner={})

Completions for the inner only work if field_1 is also added to the args.

[alon-ba]

@rchiodo
Is there a possible fix or solution?

[rchiodo]

Is there a possible fix or solution?

Sorry but I don't know yet. It's not a very high priority item as it's not a regression and you're the first person to find the issue so it's unlikely I'll look into the solution anytime soon.