March 2025
Intermediate to advanced
1172 pages
47h 52m
Spanish
Content preview from Aprender Python, 6.ª edición
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Capítulo 38. Atributos gestionados
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Este capítulo amplía las técnicas de interceptación de atributos presentadas anteriormente, introduce otras y las emplea en un puñado de ejemplos más amplios. Como todo en esta parte del libro, este capítulo está clasificado como tema avanzado y de lectura opcional, porque la mayoría de los programadores de aplicaciones no necesitan preocuparse por el material que aquí se trata: pueden obtener y establecer atributos en los objetos sin preocuparse por las implementaciones de atributos.
Sin embargo, especialmente para los creadores de herramientas, la gestión del acceso a atributos puede ser una parte importante de las API flexibles. Además, la comprensión del modelo de descriptor que aquí se trata puede hacer más tangibles las herramientas relacionadas, como las ranuras y las propiedades, e incluso puede ser de lectura obligada si aparece en código que debas utilizar.
¿Por qué gestionar los atributos?
Los atributos de los objetos son fundamentales en la mayoría de los programas Python de ; en ellos solemos almacenar información sobre las entidades que procesan nuestros scripts. Normalmente, los atributos son simplemente nombres de objetos; el atributo name de una persona, por ejemplo, puede ser una simple cadena, obtenida y establecida con la sintaxis básica de atributos:
person.name # Fetch attribute value person.name = value ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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