Summary  
This chapter explains how to implement class inheritance by defining base classes and subclasses that share and extend attributes and methods, including how to override methods and call the base implementation with super().  

General domain of usage  
Personnel management systems

Implementation of inheritance in Python is done through **base classes (parents)** and **subclasses (children)**.

A **base class** defines general properties and behaviors, while a **subclass** inherits these features and can extend them with its own.

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`Employee` is the **base class**. It stores the data that all employees share. `Manager` and `Developer` are **subclasses** of `Employee`. They automatically get everything from the base class, so they do not need to rewrite the same code.

The `super()` call runs the base class constructor, so `name` and `salary` are set correctly. Each subclass then adds its own data:

* `Manager` adds `department`
* `Developer` adds `language`

Both subclasses also override `get_info()`. They reuse the base version with `super().get_info()` and then extend the result with their own details.

This makes the base class the **foundation**, and the subclass the **specialized implementation** that adds flexibility.

Note

What is the role of a subclass in Python inheritance?

Learn how to build clean, secure, and scalable applications with Object-Oriented Programming in Python. Cover the fundamentals of classes and objects, then moves into advanced concepts such as inheritance, composition, polymorphism, and encapsulation. With clear explanations and practical examples, you'll develop the ability to design Python programs that are powerful, maintainable, and ready for real-world use.

Learn the core building blocks of object-oriented programming in Python. This section covers classes, objects, methods, and variables, giving you a solid base to understand how OOP organizes and structures code.

Base Classes and Subclasses

Base Classes and Subclasses