Numpy 2 compatible build
I haven't managed to find any previous discussion about this, although I'm surprised by that so I very well may have missed it.
Numpy 2 is coming: numpy/numpy#24300
Are there any plans to begin providing nightly builds of OpenCV Python bindings which are ABI compatible with Numpy 2? Instructions are provided here on how to do that: https://numpy.org/devdocs/dev/depending_on_numpy.html#numpy-2-0-specific-advice
Currently when I pip install opencv-python-rolling it is not ABI compatible:
# create a virtualenv $ python -m venv testvenv # install numpy 2.x $ testvenv/bin/pip install --pre -i https://pypi.anaconda.org/scientific-python-nightly-wheels/simple numpy # install opencv-python-rolling $ testvenv/bin/pip install opencv-python-rolling $ testvenv/bin/python >>> import cv2 RuntimeError: module compiled against ABI version 0x1000009 but this version of numpy is 0x2000000 Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/share/dev/src/testvenv/lib/python3.10/site-packages/cv2/__init__.py", line 181, in <module> bootstrap() File "/share/dev/src/testvenv/lib/python3.10/site-packages/cv2/__init__.py", line 153, in bootstrap native_module = importlib.import_module("cv2") File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) ImportError: numpy.core.multiarray failed to import