March 2025
Intermediate to advanced
1172 pages
47h 52m
Spanish
Content preview from Aprender Python, 6.ª edición
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Capítulo 39. Decoradores
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En el capítulo 32,en el que examinamos las peculiaridades de las clases, conocimos las propiedades y los métodos estáticos y de clase, echamos un vistazo rápido a la sintaxis de los decoradores @ que ofrece Python para declararlos, y vimos las técnicas de codificación de los decoradores. También conocimos brevemente los decoradores de funciones mientras explorábamos property en el Capítulo 38, en el contexto de las superclases abstractas en el Capítulo 29 y en forma de cápsula en el Capítulo 19.
Este capítulo retoma el tema de los decoradores donde lo dejamos. Aquí profundizaremos en la mecánica de los decoradores y estudiaremos más formas de codificar nosotros mismos nuevos decoradores con herramientas como los argumentos y el anidamiento. Como veremos, otros conceptos que estudiamos antes -especialmente la retención de estado- aparecen con frecuencia en los decoradores.
Se trata de un tema algo avanzado, y la construcción de decoradores suele interesar más a los creadores de herramientas que a los programadores de aplicaciones. Aún así, dado que los decoradores son cada vez más comunes en los marcos de trabajo populares de Python, una comprensión básica puede ayudar a desmitificar su función, incluso si sólo eres un usuario de decoradores.
Además de cubrir los detalles de construcción de los decoradores, este capítulo sirve como estudio ...
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