Classes and objects

A class describes a new kind of value, what each one holds and what it can do; objects are the values made from it, each with its own attributes.

Depth 1 · Foundation

You can write a class with `__init__`, attributes and methods, make objects from it, and know that each object has its own attributes and that `self` is the object a method was called on; you give a class a `__str__`, and use `@dataclass` for classes that mostly hold data.

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Depths of understanding

1
Foundation
You can write a class with `__init__`, attributes and methods, make objects from it, and know that each object has its own attributes and that `self` is the object a method was called on; you give a class a `__str__`, and use `@dataclass` for classes that mostly hold data.
Opens after
Functions in codeMethods are functions that live inside a class and receive the object as their first parameter.DictionariesA class does the job of a dictionary of fields, with a fixed set of names that tools can check.

Your path here

What's still between you and Classes and objects, depth 1, in the order you can learn it.

Where it fits

Builds on

Functions in codeFunctions DictionariesData Structures

This concept

Classes and objectsObjects and Classes

Opens up

Encapsulation Inheritance

Builds onThis conceptOpens upFunctions in codeFunctions DictionariesData Structures Classes and objectsObjects and Classes Encapsulation Inheritance

Makes these deeper

Once you know Classes and objects, come back to these — they'll mean more.

DecompositionDepth 2Planning a bigger program includes deciding which data and functions belong together in a class.