I am pleased to announce v0.3 of "Python Extension Patterns", the guide to writing Python C/C++ extensions. *Added Chapters* - "Containers and Reference Counts" which corrects the Python documentation where that is wrong, misleading or missing. - "Struct Sequences (namedtuple in C)" which corrects the Python documentation where that is wrong, misleading or missing. - "Context Managers" with practical C code examples. - "Watchers" with practical examples for dictionary watchers (Python 3.12+). - "Installation" for the project. - "Source Code Layout" for the project. *Changed Chapters* - Update the "Homogeneous Python Containers and C++" chapter. - Expand the "Memory Leaks" chapter. - Extended the "Logging" chapter to show how to access the CPython Frame from C. - Add "Emulating Sequence Types" to the "Creating New Types" chapter. - Expand the Index. *Other* - Python versions supported: 3.9, 3.10, 3.11, 3.12, 3.13. - Development Status :: 5 - Production/Stable - The documentation content, example and test code has roughly doubled since version 0.2.2. - PDF Documentation is 339 pages. *Project Links* - Source is on GitHub: https://github.com/paulross/PythonExtensionPatterns - Documentation on Read the Docs http://pythonextensionpatterns.readthedocs.org/en/latest/index.html - Project is on PyPi: https://pypi.org/project/cPyExtPatt Paul Ross