Function Programming in Python by David Mertz

Author:David Mertz
Language: eng
Format: epub, mobi, pdf
Publisher: O'Reilly Media, Inc.
Published: 2015-05-31T16:00:00+00:00

Methods of Classes

All methods of classes are callables. For the most part, however, calling a method of an instance goes against the grain of functional programming styles. Usually we use methods because we want to reference mutable data that is bundled in the attributes of the instance, and hence each call to a method may produce a different result that varies independently of the arguments passed to it.

Accessors and Operators

Even accessors, whether created with the @property decorator or otherwise, are technically callables, albeit accessors are callables with a limited use (from a functional programming perspective) in that they take no arguments as getters, and return no value as setters:

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