“Your access to 'Mastering Data Science with Python' has ended. Thank you for learning with us!”
Three weeks later, he aced the Flipkart interview. The interviewer asked him a niche question about gradient descent that was explained only in that course’s bonus module.
He tried the obvious first: browser extensions. "Video DownloadHelper" and "IDM" (Internet Download Manager) popped up the thumbnails of the videos, but clicking download yielded only a 1KB .m3u8 playlist file—a map, not the gold.
He installed yt-dlp (a powerful youtube-dl fork). Then he opened the Learnyst video in his browser, right-clicked, and selected "Copy network address" of the .m3u8 master playlist—a link that looked like https://cdn.learnyst.com/hls/abc123/playlist.m3u8?token=expires=1699999999 . how to download learnyst videos
yt-dlp --allow-u --no-check-certificate "https://that_long_url.m3u8"
Arjun stared at the blinking red notification on his laptop screen: “Course access expires in 72 hours.”
The Last Backup
The problem was that Learnyst, like most platforms, didn’t offer a download button for offline viewing on desktop. The mobile app allowed downloads, but those files were encrypted inside a walled garden. If his subscription ended, the garden turned to salt.
He clicked the old course link. The videos were gone. The page showed a gray "Expired" banner.
He saved the 40 URLs into a text file: videos.txt . “Your access to 'Mastering Data Science with Python'
For three hours, his laptop fan whirred like a jet engine. He watched the progress bar crawl: 12%... 45%... 89%...
The terminal spat back an error: “ERROR: Unable to download webpage: HTTP Error 403: Forbidden”
The terminal paused. Then, like magic, green text began to scroll: He tried the obvious first: browser extensions
He looked at the page source. Each video had a data-src attribute containing the unique .m3u8 URL. He wrote a quick Python script using BeautifulSoup to scrape all those URLs from the course curriculum page.
