upgrade opencv-python package to 4.11.0.86

[janbox70]

upgrade opencv-python package to 4.11.0.86.

• Closes Update opencv version #620

[mhsmith]

Thanks, I'll look at this as soon as I can.

Meanwhile, can you confirm you've tested this as described in the "Testing a package" section in the README? Once you've done that, please let me know which Python versions and ABIs you've tested. You don't need to do them all, but you should do at least one.

[mhsmith]

Please move the "Chaquopy" comment onto its own line above the change, and edit it to explain exactly why the change is necessary, including any error messages.

[janbox70]

OK, I'll update when test is passed.

[janbox70]

Thanks, I'll look at this as soon as I can.

Meanwhile, can you confirm you've tested this as described in the "Testing a package" section in the README? Once you've done that, please let me know which Python versions and ABIs you've tested. You don't need to do them all, but you should do at least one.

I'm doing test with android studio as described in README. The python version is 3.10 and ABI is x86_64.
I got following error in python console in the pkgtest app:

Python 3.10.15 (main, Oct 12 2024, 20:50:26) [Clang 18.0.2 (https://android.googlesource.com/toolchain/llvm-project d8003a456 on linux
The current application context is available in the variable 'context'.
>>> import cv2
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "import.pxi", line 60, in java.chaquopy.import_override
  File "/data/data/com.chaquo.python.pkgtest3/files/chaquopy/AssetFinder/requirements/cv2/__init__.py", line 181, in <module>
  File "/data/data/com.chaquo.python.pkgtest3/files/chaquopy/AssetFinder/requirements/cv2/__init__.py", line 111, in bootstrap
  File "/data/data/com.chaquo.python.pkgtest3/files/chaquopy/AssetFinder/requirements/cv2/__init__.py", line 109, in load_first_config
ImportError: OpenCV loader: missing configuration file: ['config.py']. Check OpenCV installation.

I've checked the build history, and found that config.py was built and packed into the wheel.

creating _skbuild/linux-x86_64-3.10/setuptools/bdist.linux-x86_64/wheel/opencv_python-4.11.0.86.dist-info/WHEEL
creating 'server/pypi/packages/opencv-python/build/4.11.0.86/cp310-cp310-android_24_x86_64/src/dist/tmprl0ag0bn/opencv_python-4.11.0.86-cp310-cp310-linux_x86_64.whl' and adding '_skbuild/linux-x86_64-3.10/setuptools/bdist.linux-x86_64/wheel' to it
adding 'cv2/LICENSE-3RD-PARTY.txt'
adding 'cv2/LICENSE.txt'
adding 'cv2/__init__.py'
adding 'cv2/__init__.pyi'
adding 'cv2/config-3.py'
adding 'cv2/config.py'
adding 'cv2/cv2.abi3.so'
adding 'cv2/load_config_py2.py'
adding 'cv2/load_config_py3.py'
adding 'cv2/py.typed'
adding 'cv2/version.py'
...

Then I checked files in pkgtest/app/build/python/pip/debug/common/cv2 in the pkgtest app in android studio, and found following .py files except config.py.

__init__.py
config-3.py
load_config_py2.py
load_config_py3.py
version.py
...

And I found config.py in pkgtest/app/build/python/pip/debug/x86_64/cv2.

Can you please identify this issue?

[mhsmith]

If the file is in debug/x86_64 but not in debug/common, then you must be installing multiple ABIs, and the file is different between them. This is not in itself a problem, as the directories will be merged back together at runtime by the importer. But you can simplify the situation by temporarily editing the abiFilters of the pkgtest app to the one ABI you're testing.

It looks like the actual problem is that OpenCV expects config.py to exist as an individual file at runtime. As described here, for performance reasons Chaquopy doesn't do this with Python modules by default. You may need to add cv2 to the extractPackages list in the pkgtest build.gradle file.