Support for opencv: No downloadable video found

[stenpiren]

Subject of the issue

I checked all open/closed issues regarding the "No downloadable video found", in my case in particular is for "opencv" learning platform: https://courses.opencv.org/

Environment

• Operating System (name/version): MacOS
• Python version: 3.7.6
• youtube-dl version: 2020.7.28
• edx-dl version: 0.1.13

Steps to reproduce

After modifying the edx-dl.py by adding:

    'opencv':{
        'url':'https://courses.opencv.org',
        'courseware-selector': ('nav', {'aria-label': 'Course Navigation'}),
    }

Then running:

python edx-dl.py -u "username" -p "password" -x opencv https://courses.opencv.org/courses/course-v1:OpenCV.org+OpenCV-102+2019_T1/course/

I get:

edx_dl version 0.1.13
Building initial headers for future requests.
Getting initial CSRF token.
Found CSRF token.
Logging into Open edX site: https://courses.opencv.org/login_ajax
Extracting course information from dashboard.
Downloading Computer Vision 1: Introduction (C++) [course-v1:OpenCV.org+OpenCV-102+2019_T1/co]
Downloading 0 section(s)
Extracting all units information in parallel.
No downloadable video found.

Expected behaviour

Courses should download but is not. Is there anyone experienced with opencv leaning platform (open edx) or can look into my account so as to improve this script?

[stenpiren]

I managed to fix:

• In parsing.py, line 410 added support for opencv URL on get_page_extractor(url) function.
• In the same file, in _make_subsections(section_soup) in subsections.name I changed to name=s.a.div.div.string.strip()) which was there before, but had been updated to fix some issue. But created others :D I also updated the subsections_soup to subsections_soup = section_soup.find_all('li', class_=['vertical outline-item focusable', 'vertical outline-item focusable scored']) and sections_soup to sections_soup = soup.find_all('li', class_=['outline-item section', 'outline-item section scored'])
• Besides also adding the 'opencv' support for platform in edx-dl.py