Can't Download "Audio ONLY" lectures (i.e. with no video)

[AdamVld603]

Can't Download "Audio ONLY" lectures, i.e. audio-recorded lectures without video.
Downloading such lectures will give the following error:

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Skipping Lecture '2020-05-27 - Lecture 31 [Recap]' as it says it does not contain any video.
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Would be nice to handle such errors and allow downloading audio lectures (even maybe into mp3 format)

[soraxas]

Agree!

If you have some python scripting knowledge it would be great if you could take a look to see how to implements that. At the moment I don't have the access to such a lecture nor time which is quite necessary to develop this feature. I have had a look and it will probably involve modifying the _loop_find_m3u8_url() function in the echo360/videos.py file. I am happy to review PR for such a feature.