Numpy + CFFI Example

An example of using CFFI to wrap a C library for use with numpy, accompanied by a benchmark to evaluate the performance benefits.

Setup

python -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt

Note: things will probably work fine with older versions of both numpy and cffi than the ones in requirements.txt, I just fixed the ones that happened to be installed for me.

Running

Run C tests:

gcc -Wall -o mylib_test mylib_test.c mylib.c
./mylib_test

Build the C extension:

python mylib_extension_build.py

Run Python tests:

python -m unittest myutils_test.py

Run the benchmark:

python benchmark.py