Bad dunder name is flagging __index__

[Redoubts]

Bug description

consider

class X:
    def __index__(self):
        return 1

this will flag index as a bad dunder, even though it is valid to do.

Configuration

No response

Command used

pylint x.py

Pylint output

************* Module x
x.py:2:4: W3201: Bad or misspelled dunder method name __index__. (bad-dunder-name)

Expected behavior

no lint

Pylint version

% pylint --version
pylint 2.17.2
astroid 2.15.4
Python 3.10.11 (main, Apr 10 2023, 08:08:57) [GCC 8.3.0]

OS / Environment

No response

Additional dependencies

No response

[Redoubts]

there's an obvious workaround in the config, but I think that shouldn't be needed

[mbyrnepr2]

Thanks for opening the issue @Redoubts. I believe this has been fixed since Pylint 2.15.5.

Tested on:

pylint --version
pylint 3.0.0b1
astroid 2.16.0dev0
Python 3.10.4

[Redoubts]

But I’m seeing this on 2.17?

…

On Mon, Apr 24, 2023 at 10:28 AM Mark Byrne ***@***.***> wrote: Closed #8613 <#8613> as not planned. — Reply to this email directly, view it on GitHub <#8613 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AASSQHJBMRXRDNFHXRYFM7LXC2EYLANCNFSM6AAAAAAXJRMKGQ> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[mbyrnepr2]

Sorry @Redoubts! Re-opening. I didn't realise this is an extension. The link I shared was a fix for calling __index__ methods.
Reproducible on main branch with:

pylint example.py --load-plugins=pylint.extensions.dunder