Return code 28 on irrelevant pyproject.toml

[buhtz]

Bug description

I am not sure but to my knowledge the return code 28 on GNU Linux indicates that something is wrong with the config file.

The point is I don't use pylint via config file. I do feed all configuration via shell switches.
The project itself do has a pyproject.toml file but there is no section (table?) for pylint in it.

Configuration

Not a config file but a unitest


    def test030_pylint(self):
        """Use Pylint to check for specific error codes.

        Some facts about PyLint
         - It is one of the slowest available linters.
         - It is able to catch lints none of the other linters
        """

        # Pylint base command
        cmd = [
            'pylint',
            # Storing results in a pickle file is unnecessary
            '--persistent=n',
            # autodetec number of parallel jobs
            '--jobs=0',
            # Disable scoring  ("Your code has been rated at xx/10")
            '--score=n',
            # PEP8 conform line length (see PyLint Issue #3078)
            f'--max-line-length={PEP8_MAX_LINE_LENGTH}',
            # prevent false-positive no-module-member errors
            '--extension-pkg-whitelist=lxml',
            # List of members which are set dynamically and missed by pylint
            # inference system, and so shouldn't trigger E1101 when accessed.
            '--generated-members=WD_ALIGN_PARAGRAPH,WD_ORIENT,PARAGRAPH',
            # Allowlist variable names
            '--good-names=idx,fp,df',
            # Allow fstrings when logging
            '--disable=logging-fstring-interpolation',
        ]
        # Add py files
        cmd.extend(self.collected_py_files[6:7])

        # subprocess.run(cmd, check=True)
        r = subprocess.run(
            cmd,
            check=False,
            universal_newlines=True,
            capture_output=True)

        print(f'!!!!!!!!!!!!!!!! {r.stdout=}')
        print(f'!!!!!!!!!!!!1!! {r.stderr=}')
        print(f'ÖÖÖÖÖÖÖÖÖÖÖÖÖÖ {r.returncode=}')

        self.assertEqual(0, r.returncode)

Command used

See configuration

Pylint output

Returncode 28

Expected behavior

PyLint should ignore the config file pyproject.toml when it does not contain a section/table related to pylint.

Pylint version

pylint 3.0.3                                                                                                                  astroid 3.0.2                                                                                                                 Python 3.9.2 (default, Feb 28 2021, 17:03:44)                                                                                 [GCC 10.2.1 20210110]

OS / Environment

Debian GNU Linux 12

[jacobtylerwalls]

Hi @buhtz 👋

Actually, the answer just above the one you linked explains pylint's exit codes accurately. Docs here. Nothing to do with a config file.

[buhtz]

Maybe consider to a human readable return code system?

[Pierre-Sassoulas]

Feel free to make a proposal if you have something in mind, For me exit codes are numerical by nature and there's nothing we can do to make them clearer.