Generic class is unsubscriptable

[Foobin]

This issue is almost identical to #2416. The difference between my issue and #2416 is where the error occurs.

Steps to reproduce

I have the following class

T = TypeVar('T', bound=Component)

class MyClass(Component, Generic[T]): # in #2416 the unsubscriptable error occurs here
    pass

The above has no pylint errors, as expected. However, I am unable to create instances of MyClass, or inherit from MyClass without an unsubscriptable error popping up in the editor. The code itself runs fine:

class Foo(Component):
    pass

instance = MyClass[Foo]()  # -> Value 'MyClass' is unsubscriptable

class InheritMyClass(MyClass[Foo]): # -> Value 'MyClass' is unsubscriptable
    pass

Current behavior

Value 'MyClass' is unsubscriptable --- pylint(unsubscriptable-object)

pylint --version output

I am using the pylint bundled with the newest version (2020.4.74986 (20 April 2020)) of Microsoft's Python extension for vscode,

[PCManticore]

Thanks for the report.

[mostrows2]

Here's another snippet that produces the error. Note that removing abc.ABC makes the error go away.

import abc
from typing import TypeVar, Generic, Protocol

class Instance:
    def method(self) -> str:
        return "foo"

class BoundObj(Protocol):
    def method(self) -> str:
        ...

T = TypeVar('T', bound=BoundObj)

class Base(abc.ABC, Generic[T]):
    T: BoundObj

class X(Base[Instance]):
    pass

[carstencodes]

The error is also removed, if abc.ABC and Generic[T] are swapped.

[cdce8p]

@Foobin and @mostrows2 I wasn't able to reproduce either of bug descriptions with the latest pylint version. We improved the handling of typing.Generic in recent versions, so I would assume that the issues have been fixed already. Going to close this issue.

If you still encounter them, please report back and I'll reopen it.