Object Oriented Programming Using Python

Explore object oriented programming concepts—abstraction, encapsulation, inheritance, and polymorphism—via classes and objects, with getters, setters, authentication, and an account balance example.

Explore how inheritance creates a new subclass from a base class, enabling code reuse and an is-a relationship. See how Python implements simple inheritance, private members, and method overriding.

Explore how super and constructors work in python inheritance, showing how a child class can call the parent initializer and access parent methods without repeating code.

Explore how method resolution order determines where Python searches for methods in inheritance, including single, multi-level, and multiple inheritance, and how constructors and the super method are resolved.

Explore types of inheritance in Python, including single, multi-level, hierarchical, multiple inheritance, and the method resolution order, with practical examples of base and derived classes.

Learn how polymorphism lets one name perform many forms in Python, via method overloading, operator overloading, and method overriding, with examples like a calculator and the print function.

Explore polymorphism through method overriding, where a subclass overrides a parent method like talk using inheritance with animal, dog, and cat to preserve the original prototype.

Learn how Python uses operator overloading through magic methods like __add__ to let numbers, strings, and lists use same operator differently, and how to implement it in user defined classes.

Learn how dunder, magic, and special methods enable operator overloading and automatic behavior like object creation, comparison, and printing, and how to override __str__ for readable object representations.

Learn how Python handles errors with try, except, finally, and else; distinguish normal from abnormal termination and implement both specific and global exception handlers.

Learn to raise exceptions in Python using the raise keyword, creating built-in or custom exceptions, and adding custom messages with date validation examples.