First-class objects in Python
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First-class objects in Python

Higher-order functions, wrappers, and factories

About the Book

This short book will tell you all you need to know to understand first-class citizenship in Python, which is the gateway to grasp how decorators work and how functional programming can supercharge your code.

The book contains three simple lessons, "First-class functions", "Nested functions", and "Factories", each one with some exercises and solutions. It also contains a section on "Functions and objects" and "Higher-order objects" where I discuss in detail how the concepts learned in the three lessons apply to classes and instances.

About the Author

Leonardo Giordani
Leonardo Giordani

My name is Leonardo Giordani, I was born in 1977 with Star Wars, bash, Apple ][, BSD, Dire Straits, The Silmarillion. I'm interested in operating systems and computer languages, photography, fantasy and science fiction, video and board games, guitar playing, and (too) many other things.

I studied and used several programming languages, from the Z80 and x86 Assembly to Python and Scala. I love mathematics and cryptography. I'm mainly interested in open source software, and I like both the theoretical and practical aspects of computer science.

For 13 years I was a C/Python programmer and DevOps for a satellite imagery company. and I am currently infrastructure engineer at WeGotPOP, a UK company based in London and New York that creates innovative software for film productions.

In 2013 I started publishing some technical thoughts on my blog, The Digital Cat. In 2018 I published my first book with Leanpub, “Clean Architectures in Python”, which has been already downloaded more than 25,000 times.

Table of Contents

  • Introduction
  • How to define functions in Python
  • First-class functions: functions as arguments
  • Nested functions: wrappers
  • Factories: functions as return values
  • Functions and objects
  • Higher-order objects
  • Factories for objects
  • Conclusion
  • Changelog

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