クラスは「データ」と「それを操作する関数（メソッド）」をひとまとめにしたもの 代入・削除などのタイミングで、内部処理やチェックが動かせる 後から処理を差し込んでも、外からの使い方（インターフェース）は変えなくていい @property：属性のよう ...

The property-manager package defines several custom property variants for Python programming including required properties, writable properties, cached properties ...

This question challenges you to consider how Python handles decorators. A decorator feature in Python wraps in a function, appends several functionalities to existing code, and then returns it.

Properties in Python are attributes that are controlled by methods. We've already seen how to use the property() function to define getter and setter methods that control how object attributes are ...