Question

For instance, the class declaration:

class Something(Superclass):
    an_attribute = 1
    another_attribute = 'hello'

Is there any way that python can tell me that an_attribute and another_attribute were defined in this class declaration?

Another way of framing this question, I guess, is “can I filter dir results by the class in which they were declared?

Answer 1

The attributes of a class are kept in it’s special __dict__ field. The __dict__ contains only the attributes defined for the current class (as well as the special attributes). As others mentioned, it can be accessed either directly or via built-in vars() function.

I strongly recommend reading this article which explains how Python handles attributes in-depth.