May 2026
Intermediate
418 pages
10h 50m
Italian
Content preview from Python per Excel (Italian Edition), 2nd Edition
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Capitolo 14. Manipolazione di fileExcel con pandas
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Finora abbiamo sempre lavorato con Python ed Excel in modo interattivo. Abbiamo eseguito script Python per automatizzare Excel e abbiamo usato le cartelle di lavoro di Excel come interfaccia utente per richiamare le funzioni Python, tramite xlwings o Python in Excel. Nella Parte VI, lasceremo da parte l'applicazione Excel: lavoreremo direttamente con i file Excel senza aprirli in Excel. In questo capitolo imparerai come leggere e scrivere cartelle di lavoro Excel con pandas. Inizieremo rivisitando il caso di studio sulla reportistica del Capitolo 8. Ti fornirò poi un'introduzione più approfondita agli strumenti che pandas offre per lavorare con i file Excel: la funzione read_excel e la classe ExcelFile per la lettura, e il metodo to_excel e la classe ExcelWriter per la scrittura dei file Excel. Dato che stiamo lavorando con i file piuttosto che con l'applicazione Excel, tutti gli esempi di codice in questo capitolo funzionano ovunque funzioni Python, incluso Linux.
Caso di studio sulla reportistica (Take 2)
Nel caso di studio " " del Capitolo 8, abbiamo usato la funzione read_excel di pandas per leggere tutti i file sorgente dalla directory sales_data nel repository di accompagnamento. Faremo lo stesso in questa versione del caso di studio. Questa volta, però, invece di usare xlwings per ...
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