Retrieving Object’s Attributes

When we try to get any object’s attributes such as obj.x, the interpreter follow more or less the following steps:

• It invokes __getattribute__ special method on the instance. If it fails,
• It invokes __getattr__ special method. It it fails,
• It returns AttributeError

class C:
    def __init__(self, x):
        self.x = 10
    
    def __getattribute__(self, k):
        print("getattribute")
        return super().__getattribute__(k)
    
    def __getattr__(self, k):
        print("getattr")
        return super().__getattr__(k)

When we want to check if an object has a specific attribute, we can use hasattr(obj, "attribute"), which follows the same logic as above to test if the object has the given attribute.