Encapsulation

Keeping an object's data behind its methods and properties, so the object can make sure its own rules always hold.

Depth 1 · Foundation

You protect an object's invariants by keeping its data behind methods and properties: `_name` for internal attributes, `@property` to let others read without writing, and setters that raise on invalid values, used in `__init__` too.

Depths of understanding

1
Foundation
You protect an object's invariants by keeping its data behind methods and properties: `_name` for internal attributes, `@property` to let others read without writing, and setters that raise on invalid values, used in `__init__` too.
Opens after
Classes and objectsEncapsulation is about what code outside a class may touch inside its objects.ExceptionsA setter refuses an invalid value by raising an exception.

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

Where it fits

Builds on

Classes and objects ExceptionsWriting Correct Code

This concept

EncapsulationObjects and Classes

Builds onThis conceptClasses and objects ExceptionsWriting Correct Code EncapsulationObjects and Classes