The first argument to Callable must be a list of types, parameter specification, or "..." when using a ParamSpec instance

[multimeric]

Bug Report

Callable[SomeParamSpec] throws a spurious error.

(A clear and concise description of what the bug is.)

To Reproduce

from typing import Callable, ParamSpec, Any

Spec = ParamSpec("Spec")
T = Callable[Spec, Any]

Expected Behavior
This should not result in any error.

(Write what you thought would happen.)

Actual Behavior

main.py:4: error: The first argument to Callable must be a list of types, parameter specification, or "..."
main.py:4: note: See https://mypy.readthedocs.io/en/stable/kinds_of_types.html#callable-types-and-lambdas

(Write what happened.)

Your Environment

• Mypy version used: Any
• Python version used: Any

Playground: https://mypy-play.net/?mypy=latest&python=3.10&gist=d01c84f502d89076345cd8f8502ec039

[AlexWaygood]

Duplicate of #11855

[AlexWaygood]

Duplicate of #11855

Type aliases generic over a ParamSpec don't work yet: that's a bug (#11855).

The bad error message is another issue, but that's already been improved upon on the master branch, it just hasn't been released yet :)