September 2019
Intermediate to advanced
272 pages
8h 4m
French
Content preview from Python précis et concis
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Méthodes de surchargement d’opérateur 125
attributs via
__di ct__
ou une superclasse, de la mêm e manière
qu’avec
__setattr__
.
__getat tribute__(self, nom)
Appelée de manière inconditionnelle pou r implémenter des
accès aux attributs des instances de la classe. Si la classe définit
aussi
__getattr__
, elle ne sera jamais appelée (à moins d’être
appelée explicitement). Cette méthode doit retourner la valeur
de l’attribut (calculée) ou lever une exception
AttributeError
.
Afin d’éviter la récursivité infinie de cette méthode, son implé-
mentation doit tou jours appeler la méthode de la superclasse
avec le même nom pour accéder à tous les attributs dont elle a
besoin ...
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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.
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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.