August 2020
Intermediate to advanced
1496 pages
56h 25m
Polish
Content preview from Python
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Rozdział 40. Metaklasy
W poprzednim rozdziale omówiliśmy dekoratory i zapoznaliśmy się z różnymi przykładami ich użycia. W ostatnim rozdziale książki nadal pozostaniemy w kręgu tworzenia narzędzi i przedstawimy kolejne zaawansowane zagadnienie — metaklasy (ang. metaclasses).
W pewnym sensie metaklasy po prostu rozszerzają model wstawiania kodu dekoratorów. Jak wiemy z poprzedniego rozdziału, dekoratory funkcji i klas pozwalają nam przechwytywać i rozszerzać wywołania funkcji oraz wywołania tworzące instancje klasy. W podobny sposób metaklasy pozwalają nam przechwytywać i rozszerzać tworzenie klas — udostępniają API służące do wstawiania dodatkowej logiki, która ma być wykonana na zakończenie instrukcji class. Metaklasy robią to jednak w sposób ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.