March 2025
Intermediate to advanced
1172 pages
47h 52m
Spanish
Content preview from Aprender Python, 6.ª edición
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Capítulo 23. Conceptos básicos de codificación de módulos
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Ahora que hemos estudiado las ideas más generales que subyacen a los módulos, pasemos a algunos ejemplos de módulos en acción. Aunque algunos de los primeros temas de este capítulo serán un repaso para los lectores lineales que ya los hayan aplicado en las demostraciones de capítulos anteriores, incluso los módulos sencillos pueden llevarnos rápidamente a otros detalles que aún no hemos encontrado en su totalidad, como la anidación, las recargas, los ámbitos y otros, que retomaremos aquí.
En general, los módulos Python son fáciles de crear; no son más que archivos de código de programa Python creados con un editor de texto, y no requieren ninguna sintaxis especial. Como Python hace todo el trabajo de buscar y cargar módulos, también son fáciles de utilizar; basta con importar un módulo o sus nombres, y utilizar los objetos a los que hacen referencia. Exploremos ambos lados de esta valla.
Crear módulos
Para definir un módulo, simplemente utiliza tu editor de texto para escribir código Python en un archivo de texto, y guárdalo con una extensión .py; cualquier archivo de este tipo se considera automáticamente un módulo Python . Como hemos visto, todos los nombres asignados en el nivel superior del módulo se convierten en sus atributos (nombres asociados al objeto módulo) y se exportan para que los utilicen ...
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