March 2025
Intermediate to advanced
1172 pages
47h 52m
Spanish
Content preview from Aprender Python, 6.ª edición
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Capítulo 4. Introducción a los objetos de Python
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Este capítulo inicia nuestro recorrido por el lenguaje Python. En un sentido informal, en Python hacemos cosas con cosas. Las "cosas" adoptan la forma de operaciones como la suma y la concatenación, y las "cosas" se refieren a los objetos sobre los que realizamos esas operaciones. En esta parte del libro, nos centraremos en esas cosas y en lo que nuestros programas pueden hacer con ellas.
De manera algo más formal, en Python, los datos toman la forma de objetos, ya seanobjetos incorporados que proporciona Python, como cadenas y listas, u objetos añadidos que creamos con clases de Python o herramientas de lenguaje externo. Como verás, estos objetos son esencialmente trozos de memoria, con valores y operaciones asociadas. Además, todo es un objeto en un script de Python. Incluso los números simples son objetos, con valores (por ejemplo, 99) y operaciones admitidas (+, -, etc.).
Dado que los objetos son también la noción más fundamental de la programación en Python, este capítulo nos permite empezar con un repaso de los tipos de objetos incorporados en Python. Los capítulos posteriores de esta parte proporcionan una segunda pasada que completa los detalles que pasaremos por alto en esta encuesta. Aquí, nuestro objetivo es hacer un breve recorrido para introducir los conceptos básicos.
La jerarquía conceptual de Python ...
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