ModuleNotFoundError: No module named 'skbuild' with 4.6.0.66 and not 4.5.5.64

[Christian-B]

We use github action to test our code

We install in the very latest off all tools including pip
python -m pip install --upgrade setuptools wheel
python -m pip install pip

This worked (and still) fine with opencv-python 4.5.5.64

it failes
File "/tmp/easy_install-otpfl9qw/opencv-python-4.6.0.66/setup.py", line 10, in
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
ModuleNotFoundError: No module named 'skbuild'

Only changing our requirements to
opencv-python < 4.6.0.66

and the exact same workflow works.

Our github action
"runs-on: ubuntu-20.04"

[rahulporuri]

We're seeing something similar. Here's some more information -

2022-06-08T10:51:36.4873246Z   [ 69%] Building CXX object modules/imgcodecs/CMakeFiles/opencv_imgcodecs.dir/src/loadsave.cpp.o
2022-06-08T10:51:36.4873849Z   In file included from /tmp/pip-install-epicha04/opencv-python_544c6f2d08d342a59ef82ed7155281aa/opencv/modules/imgcodecs/src/grfmts.hpp:54,
2022-06-08T10:51:36.4874347Z                    from /tmp/pip-install-epicha04/opencv-python_544c6f2d08d342a59ef82ed7155281aa/opencv/modules/imgcodecs/src/loadsave.cpp:47:
2022-06-08T10:51:36.4874902Z   /tmp/pip-install-epicha04/opencv-python_544c6f2d08d342a59ef82ed7155281aa/opencv/modules/imgcodecs/src/grfmt_jpeg2000_openjpeg.hpp:13:10: fatal error: openjpeg.h: No such file or directory
2022-06-08T10:51:36.4875167Z      13 | #include <openjpeg.h>
2022-06-08T10:51:36.4875261Z         |          ^~~~~~~~~~~~
2022-06-08T10:51:36.4875370Z   compilation terminated.
2022-06-08T10:51:36.4875670Z   make[2]: *** [modules/imgcodecs/CMakeFiles/opencv_imgcodecs.dir/build.make:76: modules/imgcodecs/CMakeFiles/opencv_imgcodecs.dir/src/loadsave.cpp.o] Error 1
2022-06-08T10:51:36.4875911Z   make[1]: *** [CMakeFiles/Makefile2:1624: modules/imgcodecs/CMakeFiles/opencv_imgcodecs.dir/all] Error 2
2022-06-08T10:51:36.4876014Z   make: *** [Makefile:166: all] Error 2
2022-06-08T10:51:36.4876438Z     File "/tmp/pip-build-env-t3su3dgr/overlay/lib/python3.6/site-packages/skbuild/setuptools_wrap.py", line 645, in setup
2022-06-08T10:51:36.4876619Z       cmkr.make(make_args, install_target=cmake_install_target, env=env)
2022-06-08T10:51:36.4876996Z     File "/tmp/pip-build-env-t3su3dgr/overlay/lib/python3.6/site-packages/skbuild/cmaker.py", line 680, in make
2022-06-08T10:51:36.4877239Z       self.make_impl(clargs=clargs, config=config, source_dir=source_dir, install_target=install_target, env=env)
2022-06-08T10:51:36.4877623Z     File "/tmp/pip-build-env-t3su3dgr/overlay/lib/python3.6/site-packages/skbuild/cmaker.py", line 719, in make_impl
2022-06-08T10:51:36.4877757Z       os.path.abspath(CMAKE_BUILD_DIR()),

Note also that we're only seeing this on Linux but not on Ubuntu.

[asenyaev]

@Christian-B @rahulporuri thank you for the issue!

The 4.6.0.66 version is the latest which has been released today. Looks like your installations were on the some time period when the release repository was created, but Linux x86_64 was is not pushed. It causes to build a package from source instead of using a pre-built wheel.

The pre-built wheel is already on PyPi. Could you try again to install it?

By the way, if you need to install opencv-python==4.6.0.66 package from source, you should have scikit-build>=0.13.2 in case of #637.

[Christian-B]

Respect!
Uncapped and now works on both github actions and Jenkins (which had also failed)

ok to close on my part

[rahulporuri]

same here, our CI is happy now. Thanks @asenyaev , this can be closed.

[asenyaev]

Thanks for the feedback! Closing this issue.