Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Functional Python Programming
  • Table Of Contents Toc
  • Feedback & Rating feedback
Functional Python Programming

Functional Python Programming

By : Steven F. Lott
4 (9)
close
close
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)
close
close
17
Index

Writing higher-order functions


We can identify three varieties of higher-order functions; they are as follows:

  • Functions that accept a function as one of its arguments.

  • Functions that return a function. A Callable class is a common example of this. A function that returns a generator expression can be thought of as a higher-order function.

  • Functions that accept and return a function. The functools.partial() function is a common example of this. We'll save this for Chapter 10, The Functools Module. A decorator is different; we'll save this for Chapter 11, Decorator Design Techinques.

We'll expand on these simple patterns using a higher-order function to also transform the structure of the data. We can do several common transformations such as the following:

  • Wrap objects to create more complex objects

  • Unwrap complex objects into their components

  • Flatten a structure

  • Structure a flat sequence

A Callable class object is a commonly used example of a function that returns a callable object. We'll look at...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech

Create a Note

Modal Close icon
You need to login to use this feature.
notes
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Delete Note

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Edit Note

Modal Close icon
Write a note (max 255 characters)
Cancel
Update Note

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY