opencv-contrib-python-nonfree not available for Python 3.8

[GuidoBartoli]

Actual behaviour

Installing the nonfree version of opencv-contrib-python package using pip on Python 3.8 gives the following error:

ERROR: Could not find a version that satisfies the requirement opencv_contrib_python_nonfree (from versions: none)
ERROR: No matching distribution found for opencv_contrib_python_nonfree

The standard opencv_contrib_python package (version 4.2.0.34) has already been released for Python 3.8 and works without problems, is an updated version of the nonfree package (version 4.1.1.1) planned, too?

Thanks,
Cheers

Steps to reproduce

• $ pip install opencv_contrib_python_nonfree
• Operating System: Linux Mint 20 Beta (based on Ubuntu 20.04)
• Architecture: x86_64
• Python version 3.8.2

[skvark]

I don't maintain any non-free versions. See the README for the packages that I provide. Someone else has uploaded them to PyPI. Beware, they can contain modules which are commercial or protected by patents.

#283

[skvark]

This is the guy who has uploaded them there:

@qzchenwl

The guy hasn't reacted to my emails earlier, so I'll hope this ping gets his attention. @qzchenwl, please remove my name from the PyPI package https://pypi.org/project/opencv-python-nonfree/ and related packages as well as any link referring to this repository.

[GuidoBartoli]

Ok, that explains everything. Sorry to have bothered you, but I just followed the link to your repository from PyPI, so I hope he/she will remove it, because this can easily happen to other people incidentally install that nonfree version.

Thanks,
Have a nice day

[skvark]

Yeah, no problem. I'll contact PyPI registry maintainers directly to address this issue if @qzchenwl does not react to this.

[GuidoBartoli]

However, I saw that the SIFT patent is recently expired and there are official plans to move it from nonfree to the main repository. I hope it will be then embedded in your handy Python wrapper! :)

[skvark]

Yes, it will be included in the next release.

[qzchenwl]

@skvark The packages were removed.

[skvark]

Thank you.

[nghialm269]

@skvark Hi, I see that OpenCV 4.4.0 released two days ago, containing the SIFT algorithm and some other interesting stuff like Yolov4 support, is there any plan to package it here?

[skvark]

Yes, that's the purpose of this repository. Note that SIFT is already in 4.3.0 opencv-contrib-python. In 4.4.0 it will be in opencv-python.