OpenCV Python package throws error

The current OpenCV package (opencv@4.8.0) fails to load on a pure GNU

Guix system, the error reports that some part of OpenCV isn't able to

find the libGL.so.1 library.

My GNU Guix description:

Generation 83 Feb 05 2024 16:30:36 (current)

guix a3df20d

repository URL: https://git.savannah.gnu.org/git/guix.git

branch: master

commit: a3df20db8c3b9c819db7ca29bf014e2544e389d4

To reproduce the issue

guix shell python \

python-numpy \

opencv \

--pure \

-- python3 -c 'import cv2'

And shows the following error:

Traceback (most recent call last):

File "<string>", line 1, in <module>

File "/home/<redacted>/.local/lib/python3.10/site-packages/cv2/__init__.py",

line 181, in <module>

bootstrap()

File "/home/<redacted>/.local/lib/python3.10/site-packages/cv2/__init__.py",

line 153, in bootstrap

native_module = importlib.import_module("cv2")

File "/gnu/store/8s8k2v6b5b7lyf5y5n534cjd9sipgas6-python-3.10.7/lib/python3.10/importlib/__init__.py",

line 126, in import_module

return _bootstrap._gcd_import(name[level:], package, level)

ImportError: libGL.so.1: cannot open shared object file: No such file

or directory

I tried investigating why the error happened without luck as I'm not sure

in what place OpenCV is trying to load libGL.so.1.

--

Jean-Pierre De Jesus DIAZ

Foundation Devices, Inc.

Hello,

I think this can be closed as it was my mistake as some package

installed with pip

installed OpenCV and Python was picking it up by mistake, sorry for the noise.

However, I came up with a patch to propagate python-numpy as it is required by

OpenCV.

--

Jean-Pierre De Jesus DIAZ

Foundation Devices, Inc.

INPUTS to PROPAGATED-INPUTS.

Change-Id: If4f0c8fa0cf41594a2c63f3e9f271987aa730af2

---

gnu/packages/image-processing.scm | 2 +-

1 file changed, 1 insertion(+), 1 deletion(-)