FN attribute-defined-outside-init with setattr()

[jacobtylerwalls]

Bug description

# pylint: disable=missing-module-docstring, too-few-public-methods
class NoAttributesDefinedInInit:
    """Both assignments should raise."""
    def later(self):
        """Only the first assignment raises."""
        self.a = "a"
        setattr(self, "b", "b")

Configuration

No response

Command used

pylint a.py

Pylint output

************* Module a
pylint/a.py:6:8: W0201: Attribute 'a' defined outside __init__ (attribute-defined-outside-init)

------------------------------------------------------------------
Your code has been rated at 7.50/10 (previous run: 7.50/10, +0.00)

Expected behavior

Two messages. You shouldn't be able to get around the lint warning by using setattr() (unless the attribute was already defined in __init__().

Pylint version

pylint 3.3.0-dev0
astroid 3.3.0-dev0
Python 3.12.1

OS / Environment

No response

Additional dependencies

No response