Extending and Embedding the Python Interpreter

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  • Author: Python Software Foundation
  • Format: online HTML
  • Price: free

This document describes how to write modules in C or C++ to extend the Python interpreter with new modules. Those modules can define new functions but also new object types and their methods. The document also describes how to embed the Python interpreter in another application, for use as an extension language. Finally, it shows how to compile and link extension modules so that they can be loaded dynamically (at run time) into the interpreter, if the underlying operating system supports this feature.

This document assumes basic knowledge about Python.

Chapters include:

  • Extending Python with C or C++
  • A Simple Example
  • Intermezzo: Errors and Exceptions
  • Back to the Example
  • The Module’s Method Table and Initialization Function
  • Compilation and Linkage
  • Calling Python Functions from C
  • Extracting Parameters in Extension Functions
  • Keyword Parameters for Extension Functions
  • Building Arbitrary Values
  • Reference Counts
  • Writing Extensions in C++
  • Providing a C API for an Extension Module
  • Defining New Types
  • The Basics
  • Type Methods
  • Building C and C++ Extensions with distutils
  • Distributing your extension modules
  • Building C and C++ Extensions on Windows
  • A Cookbook Approach
  • Differences Between Unix and Windows
  • Using DLLs in Practice
  • Embedding Python in Another Application
  • Very High Level Embedding
  • Beyond Very High Level Embedding: An overview
  • Pure Embedding
  • Extending Embedded Python
  • Embedding Python in C++
  • Linking Requirements


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