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Functional Python Programming

Functional Python Programming

By : Steven F. Lott
4 (9)
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Functional Python Programming

Functional Python Programming

4 (9)
By: Steven F. Lott

Overview of this book

This book is for developers who want to use Python to write programs that lean heavily on functional programming design patterns. You should be comfortable with Python programming, but no knowledge of functional programming paradigms is needed.
Table of Contents (18 chapters)
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17
Index

Chapter 2. Introducing Some Functional Features

Most of the features of functional programming are already first-class parts of Python. Our goal in writing functional Python is to shift our focus away from imperative (procedural or object-oriented) techniques to the maximum extent possible.

We'll look at each of the following functional programming topics:

  • First-class and higher-order functions, which are also known as pure functions.
  • Immutable Data.
  • Strict and non-strict evaluation. We can also call this eager vs. lazy evaluation.
  • Recursion instead of an explicit loop state.
  • Functional type systems.

This should reiterate some concepts from the first chapter. Firstly, that purely functional programming avoids the complexities of explicit state maintained via variable assignment. Secondly, that Python is not a purely functional language.

We don't offer a rigorous definition of functional programming. Instead, we'll locate some common features that are indisputably important...

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