September 2024
Intermediate to advanced
380 pages
10h 42m
German
Content preview from Robustes Python
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Kapitel 6. Anpassen deines Typecheckers
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Typechecker sind eine der besten Ressourcen, um robuste Codebasen zu erstellen. Jukka Lehtosalo, der leitende Entwickler von mypy, bietet eine wunderbar prägnante Definition von Typecheckern: "Im Wesentlichen bietet [ein Typprüfer] eine verifizierte Dokumentation."1 Typ-Annotationen dokumentieren deine Codebasis und geben anderen Entwicklern die Möglichkeit, deine Absichten zu verstehen. Typprüfer nutzen diese Anmerkungen, um zu überprüfen, ob die Dokumentation mit dem Verhalten übereinstimmt.
Deshalb ist eine Schreibmaschinenprüfung von unschätzbarem Wert. Konfuzius sagte einmal: "Der Mechaniker, der seine Arbeit gut machen will, muss zuerst sein Werkzeug schärfen."2 In diesem Kapitel geht es darum, deinen Typechecker zu schärfen. Tolle Programmiertechniken können dich weit bringen, aber es sind die Werkzeuge, die dich auf die nächste Stufe bringen. Begnüge dich nicht damit, deinen Editor, Compiler oder dein Betriebssystem zu lernen. Lerne auch deinen Typechecker. Ich zeige dir einige der nützlichsten Optionen, um das Beste aus deinen Tools herauszuholen.
Konfigurieren deines Typecheckers
Ich werde mich auf einen der beliebtesten Typechecker konzentrieren: mypy. Wenn du einen Typechecker in einer IDE (z. B. PyCharm) verwendest, wird normalerweise mypy unter der Haube ausgeführt (obwohl viele IDEs es dir ...
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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.
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.