pylint doesn't know re.Pattern members

[gerhard4]

Bug description

This looks like perfectly valid Python to me, but not to pylint:

"""pylint minimal example."""
import re
from dataclasses import dataclass

@dataclass
class _Test:
    pattern_instance: re.Pattern[str]

C = _Test(pattern_instance=re.compile(r'regex pattern'))
print(C.pattern_instance.pattern)  # E1101: Instance of 'Pattern' has no 'pattern' member (no-member)

If I don't go through a dataclass with the variable, it seems pylint is smart enough to know what's going on. But not when it's set up like this.

Configuration

No response

Command used

pylint pylint_pattern.py

Pylint output

************* Module pylint_pattern
pylint_pattern.py:10:6: E1101: Instance of 'Pattern' has no 'pattern' member (no-member)

------------------------------------------------------------------
Your code has been rated at 1.67/10 (previous run: 1.67/10, +0.00)

Expected behavior

-------------------------------------------------------------------
Your code has been rated at 10.00/10 (previous run: 1.67/10, +8.33)

I get this if I add # pylint: disable=no-member to the last line, but this shouldn't be necessary.

Pylint version

pylint 2.14.5
astroid 2.11.7
Python 3.10.5 (main, Jun 15 2022, 13:20:57) [GCC 9.4.0]

OS / Environment

Windows 11, WSL (Ubuntu)

Additional dependencies

No response

[clavedeluna]

This isn't reproducible on every python version. I could repro it on 3.11.0 and reporter used 3.10.5.

Using Python 3.8.9 I get a different result:

test.py:6:22: E1136: Value 're.Pattern' is unsubscriptable (unsubscriptable-object)

I assume this is due to dataclass