GH-53: Export the version of NumPy used to build the project as a constant (via setuptools/cython preprocessor injecting the value during build)

[kinow]

Closes #53

Used the approach found on this SO. It basically injects np.__version__ during build time and defines as a constant in C/Python, available via a function imported in __init__. Then we export __numpy_version__ in __init__.py.

Tested by installing with pip install -e . which used numpy=2.1.0. Then created a new venv, and installed this version again, but installed also numpy=2.0.

(venv2) kinow@ranma:~/Development/python/workspace/crick$ pip install numpy==2.0
Collecting numpy==2.0
  Using cached numpy-2.0.0-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (60 kB)
Using cached numpy-2.0.0-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (19.0 MB)
Installing collected packages: numpy
  Attempting uninstall: numpy
    Found existing installation: numpy 2.1.0
    Uninstalling numpy-2.1.0:
      Successfully uninstalled numpy-2.1.0
Successfully installed numpy-2.0.0
(venv2) kinow@ranma:~/Development/python/workspace/crick$ python -c 'from crick import __numpy_version__; print(__numpy_version__)'
b'2.1.0'
(venv2) kinow@ranma:~/Development/python/workspace/crick$ pip list | grep numpy
numpy   2.0.0

(above it prints __numpy_version__ as 2.1.0 as that's the build-time version, and then numpy 2.0.0 as that's the version my venv is using)

Not sure if the most elegant way… tried different approaches, but I couldn't export/inject the np.__version__, as there was only a NPY_VERSION in C NumPy, but didn't appear to match the complete NumPy version (only major?, but also couldn't export that).

Added a simple unit test, that could in theory test __numpy_version__ == np.__version__, but I am not sure if that will be always true in CICD. Happy to change that. Also fixed a couple of typos I saw while changing the code, also happy to drop those if better.

Cheers,
Bruno

[phofl]

this looks good to me

[phofl]

looks like pre-commit isn't happy

[kinow]

looks like pre-commit isn't happy

Sorry, hadn't seen that. Will fix it.

[kinow]

Applied linter proposed fixes manually, I think the workflow is waiting approval now (first time contributor here). Thanks!

[phofl]

seems still to be failing, you should be able to copy from the log of the pre commit job

[kinow]

seems still to be failing, you should be able to copy from the log of the pre commit job

I should have done that the first time. Copy-pasted, removed + signs, I hope it's right this time 🤞

[phofl]

thx