Define custom decorator like staticmethod

Question

I use factory-boy package and pylint for static linting. For the following code the linter emits the no-self-argument error.

import factory
from factory import Factory, Faker

class MyTestFactory(Factory):
    class Meta:
        model = dict

    a = Faker("pyint")
    b = Faker("pyint")

    @factory.lazy_attribute
    def a_and_b(obj):  # <-- no-self-argument here
        return obj.a + obj.b

if __name__ == "__main__":
    O1 = MyTestFactory.build()
    print(f"dbg: {O1=}")

example2.py:12:4: E0213: Method should have "self" as first argument (no-self-argument)

I don't want to hide the message completely. But instead, I'd like to tell pylint that the @factory.lazy_attribute decorator behaves just like the @staticmethod builtin, so the method requires one argument less. Is it possible? Is there a special setting in pylintrc that is responsible for declarations of static methods?

Answer 1

According to the doc:

This decorates an instance method that should take a single argument, self; the name of the method will be used as the name of the attribute to fill with the return value of the method:

That means you should name your argument self instead of obj