from __future__ import annotations doesn't ignore annotations correctly

[Starwort]

Steps to reproduce

1. Use code

from __future__ import annotations
from collections import defaultdict
squares: defaultdict[tuple, int] = defaultdict(lambda: 999999)

2. Run pylint on this code
3. E1136: Value 'defaultdict' is unsubscriptable (unsubscriptable-object)

Current behaviour

Throws E1136: Value 'defaultdict' is unsubscriptable (unsubscriptable-object)

Expected behaviour

Ignores it (as Python itself does)

pylint --version output

pylint 2.4.3
astroid 2.3.1
Python 3.8.0 (default, Oct 15 2019, 14:05:58) 
[GCC 7.4.0]

[PCManticore]

Thanks for opening an issue! This error makes sense somewhat as you should use typing.DefaultDict instead. Even mypy emits the same warning with:

a.py:3: error: "defaultdict" is not subscriptable, use "typing.DefaultDict" instead

While Python ignores the variable annotations, they can still contain errors such as this one.

[Starwort]

I submitted a near-identical issue to mypy, as the tools should still accept these as valid, even if they aren't preferred - as they are valid typehints. Disagree with closure

Also note that mypy are planning to add this functionality (priority 1 - normal)

[Starwort]

Furthermore, here is the issue, complete with MyPy's feature and priority tags, that I submitted to MyPy (along with confirmation this is being added; i.e. MyPy will stop reporting this error).
python/mypy#7907 (comment)

[Starwort]

https://www.python.org/dev/peps/pep-0585/
PEP 585 explicitly allows this behaviour. I'd like this issue reopened accordingly; I may open a new issue if I think this isn't noticed :P