unable to import opencv-contrib-python-asenyaev 4.5.2, cant open (truncated) so

[miba2020]

https://pypi.org/project/opencv-contrib-python-asenyaev/ link to this repository

Expected behaviour

import cv2 without exception

Actual behaviour

import cv2
Traceback (most recent call last):
File "", line 1, in
File "/home/renlifeng/wechat/lib/python3.6/site-packages/cv2/init.py", line 5, in
from .cv2 import *
ImportError: libpng15-c2ffaf3d.so.15.13.0: cannot open shared object file: No such file or directory

Steps to reproduce

• example code: pip install opencv-contrib-python-asenyaev
• operating system: ubuntu 18.04
• architecture: amd64
• opencv-python 4.5.2

Issue submission checklist

• This is not a generic OpenCV usage question (looking for help for coding, other usage questions, homework etc.)
• I have read the README of this repository and understand that this repository provides only an automated build toolchain for OpenCV Python packages (there is no actual OpenCV code here)
• The issue is related to the build scripts in this repository, to the pre-built binaries or is a feature request (such as "please enable this additional dependency")
• I'm using the latest version of opencv-python

[miba2020]

• setting LD_LIBRARY_PATH does not help
• ldd cv2.cpython-36m-x86_64-linux-gnu.so said multiple so not found
  libpng15-c2ffaf3d.so.15.13.0 => not found
• cp these .so to /usr/local/lib, and run ldconfig. get complains like:
  /sbin/ldconfig.real: file /usr/local/lib/libavcodec-8daa01ff.so.58.109.100 is truncated

[skvark]

That's not an official package.

[fanqie03]

When will 4.5.2 be released? I want to use https://github.com/opencv/opencv_contrib/blob/master/modules/wechat_qrcode/src/wechat_qrcode.cpp#L156

[miba2020]

Sorry. Actually, I had hesitated for a while before filing this report.

I also tried to build from source use code and scripts of this repo, but ocv_download failed due to network problems, GFW.

By the way, when will version 4.5.2 be ready?

[miba2020]

thanks! looking forward to your 4.5.2 release plan.

[skvark]

Please follow this issue for updates on 4.5.2: #459