typing.Final not subscriptable

[bryceschober]

Steps to reproduce

from dataclasses import dataclass
from typing import Final

@dataclass
class constants:
    MY_THING: Final[float] = -12.34

Current behavior

Value 'Final' is unsubscriptable

pylint --version output

$ pylint --version
pylint 2.5.3
astroid 2.4.1
Python 3.9.1 (default, Dec 11 2020, 09:29:25) [MSC v.1916 64 bit (AMD64)]

[Pierre-Sassoulas]

Hello, I cannot reproduce with python 3.8 on pylint's master branch, could you try to install pylint 2.6.0 or the latest master (pip3 install git@github.com:PyCQA/pylint.git@master#egg=pylint), please ? (2.5.3 is old) Maybe it's specific to python 3.9.

[cdce8p]

I can reproduce it with Python 3.9.1 and pylint 2.6.0.

However, I believe this issue was already fixed with: pylint-dev/astroid#885, at least it works with the current master branch of pylint and astroid just fine.

Similar to #3950, #3951, #3979

[Pierre-Sassoulas]

Thanks for testing with latest astroid @cdce8p. It should be fixed in 2.6.1 then.