Lesson 11: Inheritance — parent and child classes

What if several classes share exactly the same code? Instead of copying — inherit. A child class gets everything the parent knows for free, adding only what's unique to it. It's OOP's most powerful reuse mechanism.

Inheritance is like family traits: a dog is first of all an animal — it inherits everything animals do (eat, sleep), and adds its own (bark).

inheritance: A mechanism where a new class receives all the attributes and methods of an existing class, and extends them.
parent and child class: The parent class bequeaths; the child class inherits — written as class Dog(Animal):.