Book Image

Mastering Python 2E - Second Edition

By : Rick van Hattem
5 (1)
Book Image

Mastering Python 2E - Second Edition

5 (1)
By: Rick van Hattem

Overview of this book

Even if you find writing Python code easy, writing code that is efficient, maintainable, and reusable is not so straightforward. Many of Python’s capabilities are underutilized even by more experienced programmers. Mastering Python, Second Edition, is an authoritative guide to understanding advanced Python programming so you can write the highest quality code. This new edition has been extensively revised and updated with exercises, four new chapters and updates up to Python 3.10. Revisit important basics, including Pythonic style and syntax and functional programming. Avoid common mistakes made by programmers of all experience levels. Make smart decisions about the best testing and debugging tools to use, optimize your code’s performance across multiple machines and Python versions, and deploy often-forgotten Python features to your advantage. Get fully up to speed with asyncio and stretch the language even further by accessing C functions with simple Python calls. Finally, turn your new-and-improved code into packages and share them with the wider Python community. If you are a Python programmer wanting to improve your code quality and readability, this Python book will make you confident in writing high-quality scripts and taking on bigger challenges
Table of Contents (21 chapters)
19
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20
Index

C/C++ extensions

The previous chapter and earlier sections in this chapter have already covered the compilation of C/C++ components lightly, but this topic is complicated enough to warrant its own section with more in-depth explanations.

For convenience, we will start with a basic setup.py file that compiles a C extension:

import setuptools

sum_of_squares = setuptools.Extension('sum_of_squares', sources=[
    # Get the relative path to sum_of_squares.c
    str(PROJECT_PATH / 'sum_of_squares.c'),
])

setuptools.setup(
    name='T_04_C_extensions',
    version='0.1.0',
    ext_modules=[sum_of_squares],
)

Before you start with these extensions, you should learn the following setup.py commands:

  • build_ext: This command builds the C/C++ extension so it can be used when the package is installed in development/editable mode.
  • clean: This cleans the results from the build command. This is generally not...