Built-in functions, constructors, and callables

Опубликовано: 31 Май 2026
на канале: Alexander Hess - Pythonista
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In this video, I explain how built-in functions are plain objects, just as all other objects in memory, with an identity, a data type, and a "value" (= the code to be executed). Further, I show how we can find infos about a built-in function in the official documentation. Then, we learn about the generic idea of a callable, which is any object that can be called (= executed) and includes more than just functions. In particular, so-called constructors (i.e., more formally classes) may also be called and cast any object as the given data type.

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The lecture is based on the free book "Introduction to Python & Programming".
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Alexander Hess, PhD Student
WHU - Otto Beisheim School of Management, Vallendar, Germany

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