Python classes and objects

Code pattern

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Definition

class Name: with __init__(self, ...) to set attributes; methods have self; create objects with Name(...); inheritance with class Child(Parent):.

Example

class Dog(Animal): def speak(self): return "Woof"

Found in: course specifications.

Where you'll use it in the test

Syllabus area: Code patterns.

Question types it can appear in

Python: Write a class
Code reading: Code or algorithm reading: interpret a fragment and state its output or purpose.

Where it has appeared in the paper

The Software Engineering Project (Part A). Part letters follow each paper’s own layout.

How to use it

A model sentence

General advice, built from the definition and example above

Code pattern: “class Name: with __init__(self, ...) to set attributes; methods have self; create objects with Name(...); inheritance with class Child(Parent):.” Then apply it: class Dog(Animal): def speak(self): return "Woof"

In a short answer, give the definition in your own words first, then tie it to the situation in the question. Do not copy the example above unless it fits the scenario.

Go deeper

Flashcard: Python classes and objects in Code Patterns: Pseudocode, Python, SQL, CSS (Years 11 and 12) · study that set
Memorise: Python basics: input, selection, loops, strings
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