A class is like a blueprint for creating objects with specific properties and methods. Inheritance allows a new class to use the properties and methods of an existing class, making it easy to create specialized versions of objects. For example, a Car class can inherit from a Vehicle class, gaining its features while adding its own.

Great work trying this on your own! The main issue is there isn't any place for the SubClass.__init__ to accept arguments that it would pass on to the ParentClass through the super() call. This where **kwargs is useful. Rewriting you code (and correcting indentation issues): ```python class ParentClass: ... def init(self, firstname, lastname): ... self.firstname = firstname ... self.lastname = lastname ... class SubClass(ParentClass): ... def init(self, age, location, kwargs): # added **kwargs ... super().init(kwargs) # supplying **kwargs to parent init, do Not include 'self' ... self.age = age ... self.location = location ... myinstance = SubClass(firstname="Joe", secondname="Bloggs", age=20, location="United Kingdom") Traceback (most recent call last): File "", line 1, in File "", line 3, in _init__ TypeError: init() got an unexpected keyword argument 'second_name' replacing secondname with lastname: myinstance = SubClass(firstname="Joe", lastname="Bloggs", age=20, location="United Kingdom") myinstance.dict {'firstname': 'Joe', 'lastname': 'Bloggs', 'age': 20, 'location': 'United Kingdom'} ``` As when calling other methods, the self is not included when calling __init__ Post back if you have more questions. Good luck!!

Any property of Dog will override a property inherited from Cat. You can re-define a value in Cat, but it won't matter because it has already been overridden by the child. For example:

class Cat:
    age = 0  # Cat.age = 0


class Dog(Cat):
    pass  # Dog.age = Cat.age = 0


Dog.age=1  # Dog.age = 1, and Dog.age no longer points to Cat.age
Cat.age=2  # Cat.age = 2

print(Dog.age, Cat.age)  # Dog.age is no longer Cat.age. They are completely different

Contrast that with this:

class Cat:
    age = 0  # Cat.age = 0


class Dog(Cat):
    pass  # Dog.age = Cat.age = 0

Cat.age = 10  # Cat.age = 10

print(Dog.age, Cat.age)  # Dog.age points to Cat.age, so Dog.age resolves to 10