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Showing content from https://github.com/python/mypy/issues/8946 below:

Typing of return type of a generic function · Issue #8946 · python/mypy · GitHub

Note: if you are reporting a wrong signature of a function or a class in
the standard library, then the typeshed tracker is better suited
for this report: https://github.com/python/typeshed/issues

Please provide more information to help us understand the issue:

• Are you reporting a bug, or opening a feature request?
  Reporting Bug
• Please insert below the code you are checking with mypy,
  or a mock-up repro if the source is private. We would appreciate
  if you try to simplify your case to a minimal repro.

from typing import TypeVar, Type, Optional, List, cast

T = TypeVar("T")


def some_func(something: Type[T]) -> T:
    return "something"


some_func(Optional[str])
some_func(Type[str])

• What is the actual behavior/output?

typing_test.py:7: error: Incompatible return value type (got "str", expected "T")
typing_test.py:10: error: Argument 1 to "some_func" has incompatible type "object"; expected "Type[<nothing>]"
typing_test.py:11: error: Argument 1 to "some_func" has incompatible type "object"; expected "Type[<nothing>]"

• What is the behavior/output you expect?
  Actually since this answer https://stackoverflow.com/a/42226930 I would expect it work. It also worked in previsous versions.
• What are the versions of mypy and Python you are using?
  mypy 0.780
  python 3.7.7

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