Developing C++ extension in Python using pybind11

This is a summary of the commands used in the tutorial. To clone the repository and the submodules, run

git clone --recursive https://github.com/xflash96/pybind11_package_example

Using the Docker developing environment

• To build the docker image, run cd docker && ./build.sh
• To run the container, ./run.sh .

See the docker/Dockerfile for the details.

Building the extension and installing the package

• To build the C++ extension, run python setup.py build_ext -i
• To install the package, run sudo `which python` setup.py develop

Profiling

line_profiler for the Python code

• Mark the @profile to the function of interest.
• Run the profiler via kernprof -l ./bin/example_cmd
• See the report with python -m line_profiler example_cmd.lprof

Perf for the C++ extension

• Enable perf in Linux by sudo sh -c 'echo 1 >/proc/sys/kernel/perf_event_paranoid'
• Profile via perf record bin/example_cmd
• Show report with perf report

Testing

Use either

• python setup.py test
• pytest to run the unit tests.

Releasing the package

• Pack the source distribution with python setup.py sdist
• Upload the package with python -m twine upload --repository testpypi dist/*