Formation 90 min read Object-Oriented Programming

📦 Inheritance and Polymorphism

Python & Data Science Chapter : Object-Oriented Programming Sub-chapter : Inheritance and polymorphism

Learning objectives

🎯 Objectives:\n
1Understand inheritance\n2. Use super()\n3. Override methods\n4. Understand polymorphism

Introduction

📖 Inheritance allows creating a hierarchy between classes.

Theoretical content

Inheritance:\n
PYTHON
\nclass Animal:\n    pass\n\nclass Dog(Animal):\n    pass\n

Practical examples

💻 Example: Animal\n
PYTHON
\nclass Dog(Animal):\n    pass\n

Best practices

1Use super() to call parent\n✅ 2. Follow Liskov substitution principle\n✅ 3. Avoid complex multiple inheritance

Common pitfalls

Forgetting to call super().__init__()\n
Always call parent constructor

Summary

Inheritance: child inherits from parent\n✅ Polymorphism: same method, different behavior\n✅ super(): call to parent

Additional resources

📚 docs.python.org/3/tutorial/classes.html#inheritance