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You're reading from  Learning Cython Programming (Second Edition) - Second Edition

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Published inFeb 2016
Reading LevelBeginner
PublisherPackt
ISBN-139781783551675
Edition2nd Edition
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Philip Herron
Philip Herron
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Philip Herron

Philip Herron is a developer who focuses his passion toward compilers and virtual machine implementations. When he was first accepted to Google Summer of Code 2010, he used inspiration from Paul Biggar's PhD on the optimization of dynamic languages to develop a proof of the concept GCC frontend to compile Python. This project sparked his deep interest in how Python works. After completing a consecutive year on the same project in 2011, Philip applied to Cython under the Python foundation to gain a deeper appreciation of the standard Python implementation. Through this he started leveraging the advantages of Python to control the logic in systems or even add more high-level interfaces, such as embedding Flask web servers in a REST API to a system-level piece of software, without writing any C code. Philip currently works as a software consultant for Instil Software based in Northern Ireland. He develops mobile applications with embedded native code for video streaming. Instil has given him a lot of support in becoming a better engineer. He has written several tutorials for the UK-based Linux Format magazine on Python and loves to share his passion for the Python programming language.
Read more about Philip Herron

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Cython and C++


Cython, above all binding generators, works with C++ the most seamlessly. C++ has some complexity when writing bindings for it, such as calling conventions, templates, and classes. I find this exception handling to be a shining feature of Cython, and we will look at the examples of each.

Namespaces

I am introducing namespaces first because Cython uses namespaces as a way to reference C++ code within your module. Consider this C++ header with the following namespace:

#ifndef __MY_HEADER_H__
#define __MY_HEADER_H__

namespace mynamespace {
….
}

#endif //__MY_HEADER_H__

You will wrap this with the cdef extern declaration:

cdef extern from "header.h" namespace "mynamespace":

You can now address it in Cython as you normally would do for a module:

import cythonfile
cythonfile.mynamespace.attribute

It really feels like a Python module simply by using a namespace.

Classes

I would take a guess that most of your C++ code revolves around using classes. Being an object-oriented language...

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Learning Cython Programming (Second Edition) - Second Edition
Published in: Feb 2016Publisher: PacktISBN-13: 9781783551675

Author (1)

author image
Philip Herron

Philip Herron is a developer who focuses his passion toward compilers and virtual machine implementations. When he was first accepted to Google Summer of Code 2010, he used inspiration from Paul Biggar's PhD on the optimization of dynamic languages to develop a proof of the concept GCC frontend to compile Python. This project sparked his deep interest in how Python works. After completing a consecutive year on the same project in 2011, Philip applied to Cython under the Python foundation to gain a deeper appreciation of the standard Python implementation. Through this he started leveraging the advantages of Python to control the logic in systems or even add more high-level interfaces, such as embedding Flask web servers in a REST API to a system-level piece of software, without writing any C code. Philip currently works as a software consultant for Instil Software based in Northern Ireland. He develops mobile applications with embedded native code for video streaming. Instil has given him a lot of support in becoming a better engineer. He has written several tutorials for the UK-based Linux Format magazine on Python and loves to share his passion for the Python programming language.
Read more about Philip Herron