// resources

Resources

All | Cheatsheet Code Example Exercise Template Other Achievement | Basics Control Flow Functions Data Structures Modules & Packages Projects Object-oriented programming | ↑ oldest first ↓ newest first

// Code Example

oop_classes_objects.py

Classes and Objects — blueprint, constructor, self, methods. The foundation of OOP in one file.

33 downloads 16 May 2026 → Classes and Objects: The Blueprint and …

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// Code Example

oop_attributes_methods.py

Attributes and Methods — instance vs class attributes, default values, methods that read, modify, and return. Everythin…

31 downloads 16 May 2026 → What an Object Knows and What It Can Do

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// Code Example

oop_self.py

Understanding self — what it is, why it exists, how Python passes it automatically, and how it connects data and method…

27 downloads 16 May 2026 → Understanding OOP self

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// Code Example

oop_encapsulation.py

Encapsulation — private attributes, getters, setters, validation inside the object. The object enforces its own rules.

28 downloads 16 May 2026 → Encapsulation: Control Over Your Data

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// Code Example

oop_inheritance.py

Inheritance — parent class, child class, super(), method overriding. Write shared logic once, inherit everywhere.

26 downloads 16 May 2026 → Reusing Code with Inheritance

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// Code Example

oop_polymorphism.py

Polymorphism — same method call, different behavior per class. One loop, no isinstance() checks, new classes without ch…

29 downloads 16 May 2026 → Polymorphism: When the Same Call Does D…

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// Code Example

oop_special_methods.py

Special Methods — str, repr, len, eq, contains. Make your objects work with print(), len(), ==, and in.

32 downloads 16 May 2026 → Making Objects Behave Like Built-ins

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// Exercise

calories_tracker_oop.py

Calories Tracker — OOP version. Same logic, new structure. CalorieTracker class with user parameter, independent files …

28 downloads 18 May 2026 → Calories Tracker Update — Round 2/2

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// Exercise

safe_paws_oop.py

Safe Paws — OOP version. Two classes: Animal and Shelter. Add, search, edit, adopt, activity report. Shelter("city_shel…

30 downloads 18 May 2026 → Safe Paws Update — Round 2/2

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// Other

oop_mistakes.py

Common OOP Mistakes — 8 mistakes, 8 fixes. self, super(), mutable defaults, class vs instance attributes, single respon…

29 downloads 18 May 2026 → Common OOP Mistakes

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// Cheatsheet

OOP — The Full Picture

OOP — The Full Picture. Class and object, self, encapsulation, inheritance, polymorphism, special methods, common mista…

29 downloads 18 May 2026 → OOP — The Full Picture

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// Exercise

task_manager_r1.py

Task Manager — Round 1. Task and TaskList classes, add, load, display, persistence. Two classes, one system, ready to r…

31 downloads 18 May 2026 → Task Manager Project — Round 1

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// Exercise

task_manager.py

Task Manager — Round 2. Update status, filter by priority and status, delete with confirmation, export report grouped b…