A tale of Python C extensions and cross-platform wheels
summary
Creates a C++ wrapper with pybind11, implements a PDF→PNG converter using Poppler, and packages extension modules with setup.py so pip builds a shared-object wheel. Compiles platform-specific shared libraries in Docker, macOS builders, and Visual Studio, uses cibuildwheel for CI, runs auditwheel (Linux) and delvewheel (Windows) to bundle dependencies, applies DLL mangling when needed, and uploads cross-platform wheels to PyPI that install and run as expected.
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chapters (8)
- 0:00Introduction and project goal
- 1:15Motivation and use case
- 3:03Writing Python C extensions
- 6:11Using Pybind11
- 9:46Shared libraries explained
- 12:39Linking shared dependencies
- 17:26Bundling libraries in wheels
- 21:06Automation and conclusions
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