Book Image

Learning Cython Programming (Second Edition) - Second Edition

By : Philip Herron
Book Image

Learning Cython Programming (Second Edition) - Second Edition

By: Philip Herron

Overview of this book

Cython is a hybrid programming language used to write C extensions for Python language. Combining the practicality of Python and speed and ease of the C language it’s an exciting language worth learning if you want to build fast applications with ease. This new edition of Learning Cython Programming shows you how to get started, taking you through the fundamentals so you can begin to experience its unique powers. You’ll find out how to get set up, before exploring the relationship between Python and Cython. You’ll also look at debugging Cython, before moving on to C++ constructs, Caveat on C++ usage, Python threading and GIL in Cython. Finally, you’ll learn object initialization and compile time, and gain a deeper insight into Python 3, which will help you not only become a confident Cython developer, but a much more fluent Python developer too.
Table of Contents (14 chapters)
Learning Cython Programming Second Edition
About the Author
About the Reviewer

Installing Cython

Since Cython is a programming language, we must install its respective compiler, which just so happens to be the aptly named Cython.

There are many different ways to install Cython. The preferred one would be to use pip:

$ pip install Cython

This should work on both Linux and Mac. Alternatively, you can use your Linux distribution's package manager to install Cython:

$ yum install cython     # will work on Fedora and Centos
$ apt-get install cython # will work on Debian based systems.

For Windows, although there are a plethora of options available, following this wiki is the safest option to stay up-to-date:

Emacs mode

There is an emacs mode available for Cython. Although the syntax is nearly the same as Python, there are differences that conflict in simply using Python-mode. You can grab cython-mode.el from the Cython source code (inside the Tools directory.) The preferred way of installing packages to emacs would be to use a package repository like MELPA:

To add the package repository to emacs, open your ~/.emacs configuration file and add:

(when (>= emacs-major-version 24)
  (require 'package)
   '("melpa" . "")

Once you add this and reload your configuration to install the Cython mode, you can simply run:

'M-x package-install RET cython-mode'

Once this is installed, you can activate the mode by adding this into your emacs config file:

(require 'cython-mode)

You can activate the mode manually at any time with:

'M-x cython-mode RET'

Getting the code examples

Throughout this book, I intend to show real examples that are easy to digest in order to help you get a feel of the different things you can achieve with Cython. To access and download the code used, please clone this repository:

$ git clone git://