Conflicting warnings R2004 from `pylint.extensions.magic_value` and R6103 from `pylint.extensions.code_style`

[fgoudreault]

Bug description

Here's a problematic code according to the pylint.extensions.magic_value checker.

ll = ["test"]
if "test" in ll:
    raise ValueError("test in list")

Which raises the following warning:

test.py:4:11: R2004: Consider using a named constant or an enum instead of ''test''. (magic-value-comparison)

Fixing it using the suggestion from documentation like so raises a new warning from the pylint.extensions.code_style checker this time:

ll = ["test"]
TEST = "test"
if TEST in ll:
    raise ValueError("test in list")

Warning:

test.py:5:3: R6103: Use 'if (TEST := 'test') in ll:' instead (consider-using-assignment-expr)

Then, applying the suggestion from the checker raises back the original warning (which seems like a bug to me):

ll = ["test"]
if TEST := "test" in ll:
    raise ValueError("test in list")

Warning:

test.py:4:11: R2004: Consider using a named constant or an enum instead of ''test''. (magic-value-comparison)

Configuration

Command used

pylint test.py --load-plugins="pylint.extensions.magic_value,pylint.extensions.code_style"

Pylint output

************* Module test
test.py:4:11: R2004: Consider using a named constant or an enum instead of ''test''. (magic-value-comparison)

Expected behavior

The last warning should not be raised IMO.

Pylint version

pylint 4.0.2
astroid 4.0.1
Python 3.13.8 (main, Oct  8 2025, 08:53:24) [GCC 11.4.0]

OS / Environment

Distributor ID: Ubuntu
Description: Ubuntu 22.04.5 LTS
Release: 22.04
Codename: jammy

Additional dependencies