ATLAS CMake Nanobind example

Example nanobind CPython extension meant to be built in an ATLAS CMake environment.

This is the trivial example taken from the nanobind docs and the nanobind_example GitHub repository. This repository intentionally produces a nanobind module and not an Python library.

Requirements

• Any CVMFS enabled machine or an ATLAS analysis release v25.2.30+ Linux container (e.g. gitlab-registry.cern.ch/atlas/athena/analysisbase:25.2.30)
  • nanobind was added to the ATLAS analysis release externals in release 25.2.30. (c.f. Athena MR 74980)

Getting started

This repository contains examples of projects that could be included as modules in an ATLAS CMake build. First clone the repository and navigate inside of it

git clone git@github.com:matthewfeickert/atlas-cmake-nanobind-example.git && cd atlas-cmake-nanobind-example

To run the "normal" CMake example with nanobind run

bash build_normal_cmake.sh

and to run the ATLAS CMake example run

bash build_atlas_cmake.sh