Python-C++ Bindings Meeting

Tuesday 4 Aug 2026, 16:00 → 17:35 Europe/Zurich

Aaron Jomy (CERN)

Discussion on developments in Python-C++ bindings surrounding the Cppyy project, and broader interactive C++ as a service based on the CppInterOp project.

16:00 → 16:30 Round Table

16:30 → 16:55 Moving from Cppyy forks to CppJIT

In 2023, compiler-research forked wlav/cppyy to re-engineer it on vanilla Clang and the CppInterOp library for the type system and reflection. The forks served as the R&D vehicle while maintaining a common history with the original cppyy project. Once the new system converged and worked end to end, the decision was made to start a successor project.

This talk aims to provide a complete overview of the transition to a new monorepo, the design decisions, planned RFC process, transition guide for developer builds, and the planned schedule ahead towards a beta release on PyPI.

Speaker: Aaron Jomy (CERN)

CppJIT transition plan.pdf

16:55 → 17:00 AOB