Using __slots__ hides class variables

[Nodd]

If __slots__ is declared in a class, it takes precedence over everything, including class methods and variables. However __slots__ has an effect on instance attributes only, not class attributes.

The relevant lines is https://github.com/astropy/sphinx-automodapi/blob/0aad86aa90bcd7ab5b3004b732e21a3bd3d9de70/sphinx_automodapi/automodsumm.py#LL534C33-L549C33. Maybe names should also be filled with getattr(type(obj), '__dict__').keys() or something like that ?

[Nodd]

After mode digging, I found that my suggestion was wrong. Actually I think that __slots__ should not be taken into account here, since the function applies to a class itself, so the class has a __dict__ even if __slots__ is declared.

Here is an example:

from pprint import pprint


class A:
    __slots__ = ("a", "b")

    def __init__(self):
        self.a = 0

    def func(self):
        """Documentation"""
        return 1


pprint(tuple(getattr(A, "__slots__")))  # ('a', 'b')
pprint(getattr(A, "__dict__").keys())  # dict_keys(['__module__', '__slots__', '__init__', 'func', 'a', 'b', '__doc__'])

Notice that the last line yields correctly func along with a and b.