July 2010
Beginner to intermediate
404 pages
10h 6m
English
Content preview from Python 3 Object Oriented ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Polymorphism
We introduced polymorphism in Chapter 1. It is a fancy name describing a simple concept; different behaviors happen depending on which subclass is being used, without having to explicitly know what the subclass actually is. As an example, imagine a program that plays audio files. A media player might need to load an AudioFile object and then play it. We'd put a play() method on the object, which is responsible for decompressing or extracting the audio and routing it to the sound card and speakers. The act of playing an AudioFile could feasibly be as simple as:
audio_file.play()
However the process of decompressing and extracting an audio file is very different for different types of files. The .wav files are stored uncompressed, while ...
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