False positive for unexpected-keyword-arg for decorators with inner inner function

[martimlobao]

Bug description

Just tried this out with the latest version of the main branch (any version after bfeca4c) and there seems to be a case where #5547 is still raising a false positive unexpected-keyword-arg error.

def example_decorator(*new_func_args, **new_func_kwargs):
    def decorator(func):
        def wrapper(*args, **kwargs):
            print_me = kwargs.pop("print_me", None)
            def inner(*inner_args, **inner_kwargs):
                print(print_me)
                return func(*inner_args, **inner_kwargs)

            return inner(*args, **kwargs)

        return wrapper

    if len(new_func_args) == 1 and len(new_func_kwargs) == 0 and callable(new_func_args[0]):
        return decorator(new_func_args[0])
    return decorator

@example_decorator
def example_func(num):
    return num ** 2

example_func(6, print_me="hello")

(Note that no error is raised by pylint if we remove the top-level function (example_decorator). The reason for someone to define the decorator this way is so that it's possible to use the bare @example_decorator, as well as with arguments @example_decorator(foo=1).)

Using pylint on commit hash e75e37a, this is the error that's printed out:

E1123: Unexpected keyword argument 'print_me' in function call (unexpected-keyword-arg)

Calling example_func works fine:

>>> example_task(6, print_me="hello")
hello
36

Command used

pylint a.py

Pylint output

************* Module a
E1123: Unexpected keyword argument 'print_me' in function call (unexpected-keyword-arg)

Expected behavior

No unexpected-keyword-arg error raised

Pylint version

current pylint version in the `main` branch (set for 2.13.0)

[martimlobao]

See #5547 for additional context

[rmorshea]

Unsure if this is a true solution, but perhaps related: #8332

[mamiu]

Have the same problem. Here's a very simplified version of the code that displays this error:

def clean_html(html):
    elements_to_delete = [
        {"search_term": "footer", "delete_after": True}
    ]

    for etd in elements_to_delete:
        search_term = etd.pop("search_term", None)
        elements = html.find_all(search_term)

        html = delete_elements(html, elements, **etd)

        # ... rest of the code

This is the error I get:

        html = delete_elements(html, elements, **etd)
#              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
#              Pylint: Unexpected keyword argument 'search_term' in function call

BTW: This is the function definition of the delete_elements function:

def delete_elements(html, elements=[], delete_before=False, delete_after=False):
    # some code to delete html elements