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Free module

Object-oriented design and design patterns

Learn object-oriented design hands on: classes, inheritance, composition, design principles and common design patterns in Python.

6 lessons335 min lessonSoftware engineering

The lessons

Each lesson is free to read in full. Create a free account to run its commands in a live lab and to sit its quizzes and tasks.

  1. 1 · Virtual machine lab

    Classes and objects in Python

    I can model a thing as a class with state and behaviour.

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  2. 2 · Virtual machine lab

    Inheritance and polymorphism

    I can reuse code through inheritance and use polymorphism.

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  3. 3 · Virtual machine lab

    Composition over inheritance

    I can choose composition over inheritance and say why.

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  4. 4 · Virtual machine lab

    Object-oriented design principles

    I can spot code that gives a class two jobs or is hard to extend.

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  5. 5 · Virtual machine lab

    Factory, strategy and decorator patterns

    I can apply a factory, a strategy and a decorator.

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  6. 6 · Virtual machine lab

    Observer and state patterns

    I can apply the observer and state patterns.

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Worked in a real lab

Every lesson of this module is worked in a lab started for you alone. The labs it uses:

Teaching a class? Set this module for your students with a teacher guide, marked assignments and a lab for every student.