False-Negative - unexpected-keyword-arg - using decorator with keyword arguments

[pcharmoille]

Bug description

def my_decorator(function):
    from functools import wraps

    @wraps(function)
    def wrapper(*args, **kwargs):
        return function(*args, **kwargs)

    return wrapper


@my_decorator
def a(c=0):
    pass


a(d=2)

Configuration

No response

Command used

pylint -E a.py

Pylint output

None

Expected behavior

************* Module test_pylint
E: 16, 0: Unexpected keyword argument 'd' in function call (unexpected-keyword-arg)

well reported on :

No config file found, using default configuration
pylint 1.9.5,
astroid 1.6.6
Python 2.7.18 (v2.7.18:8d21aa21f2, Apr 20 2020, 13:25:05) [MSC v.1500 64 bit (AMD64)]

Pylint version

pylint 2.15.8
astroid 2.12.13
Python 3.9.13 (tags/v3.9.13:6de2ca5, May 17 2022, 16:36:42) [MSC v.1929 64 bit (AMD64)]

OS / Environment

windows amd 64b

Additional dependencies

No response

[clavedeluna]

I believe this is the same issue as #5784 but I'll let a maintainer close as a clone just to get another pair of eyes on it.

[Pierre-Sassoulas]

Decorator can modify function signature in really complex way that pylint won't understand right now. We're favoring false negatives over false positives so it makes sense to not report in this case in the current state of what astroid can understand of decorators. I'm on mobile so I don't know what the issue we should close in favor of is.

[clavedeluna]

Closing given @Pierre-Sassoulas 's comment.