September 2024
Intermediate to advanced
1648 pages
52h 56m
Spanish
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Capítulo 8. Listas y diccionarios
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Ahora que ya hemos aprendido sobre números y cadenas, este capítulo pasa a ofrecer toda la información sobre los tipos de objetos lista y diccionario de Python: colecciones de otros objetos y los principales caballos de batalla de casi todos los scripts de Python. Como verás, ambos tipos son extraordinariamente flexibles: pueden modificarse in situ, pueden crecer y decrecer a voluntad, y pueden contener y estar anidados en cualquier otro tipo de objeto. Aprovechando estos tipos, puedes construir y procesar estructuras de información arbitrariamente ricas en tus scripts.
Listas
La siguiente parada en nuestro recorrido por los objetos incorporados es la lista de Python. Las listas son el tipo de objeto colección ordenada más flexible de Python. A diferencia de las cadenas, las listas pueden contener cualquier tipo de objeto: números, cadenas e incluso otras listas. Además, a diferencia de las cadenas, las listas pueden modificarse in situ mediante asignaciones a desplazamientos y cortes, llamadas a métodos de listas, sentencias de borrado, etc.: son objetos mutables.
Las listas de Python hacen el trabajo de muchas de las estructuras de datos de colecciones que podrías tener que implementar manualmente en lenguajes de bajo nivel, como C. He aquí un rápido vistazo a sus principales propiedades. Las listas de Python son:
- Colecciones ordenadas ...
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