March 2025
Intermediate to advanced
1172 pages
47h 52m
Spanish
Content preview from Aprender Python, 6.ª edición
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Capítulo 30. Sobrecarga de operadores
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Este capítulo continúa nuestro estudio en profundidad de la mecánica de clases centrándose en la sobrecarga de operadores. Ya vimos brevemente la sobrecarga de operadores en capítulos anteriores. Aquí daremos más detalles y exploraremos un puñado de métodos de sobrecarga de uso común, la mayoría de los cuales aún no hemos encontrado. Aunque no tenemos espacio para demostrar cada uno de los muchos métodos de sobrecarga de operadores disponibles, los que codificaremos aquí son una muestra lo suficientemente representativa como para descubrir las posibilidades de esta característica de las clases Python.
Lo básico
En realidad, "sobrecarga de operadores" simplemente significa interceptar operaciones incorporadas en los métodos de una clase: Python invoca automáticamente tus métodos cuando aparecen instancias de la clase en operaciones incorporadas, y el valor de retorno de tu método se convierte en el resultado de la operación correspondiente. Aquí tienes un repaso de las ideas clave de la sobrecarga:
La sobrecarga de operadores permite a las clases interceptar operaciones normales de Python.
Las clases pueden sobrecargar todos los operadores de expresión incorporados en Python.
Las clases también pueden sobrecargar otras operaciones incorporadas, como la impresión, las llamadas a funciones y el acceso a atributos.
La sobrecarga ...
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