Lightning Talk: Write Valid C++ and Python in One File
summary
A concrete hack that produces one source file both C++ and Python can parse: the C preprocessor emits C++ declarations and Python assignments by using macros that expand to MAJOR_VERSION, MINOR_VERSION, BUILD_NUMBER constants, #undef after use and a macro that creates a dummy print_namespace = 0 so Python imports a namespace-like object. The demo builds a single chimera file, compiles and imports correctly, claims an order‑of‑magnitude saving in update time, and leaves build number automation to a separate step.
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