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Functional Python Programming - Second Edition
book

Functional Python Programming - Second Edition

by Steven F. Lott
April 2018
Intermediate to advanced content levelIntermediate to advanced
408 pages
10h 42m
English
Packt Publishing
Content preview from Functional Python Programming - Second Edition

Review of some design patterns

The max(), min(), and sorted() functions have a default behavior without a key= function. They can be customized by providing a function that defines how to compute a key from the available data. For many of our examples, the key() function has been a simple extraction of available data. This isn't a requirement; the key() function can do anything.

Imagine the following method: max(trip, key=random.randint()). Generally, we try not to have have key() functions that do something obscure like this.

The use of a key= function is a common design pattern. Functions we design can easily follow this pattern.

We've also looked at lambda forms that we can use to simplify using higher-order functions. One significant ...

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Functional Python Programming - Third Edition

Functional Python Programming - Third Edition

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Publisher Resources

ISBN: 9781788627061Supplemental Content