ValueError: max() arg is an empty sequence about yewtube HOT 10 CLOSED

Hi, I am not able to reproduce this error. When I search for brian eno short I get a set of results as normal. I have tried with both set search_music true and set search_music false.

It looks like the error is due to an audio stream not being available for a particular item. I will update the program to cater for this.

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I will add that sometimes selecting an item causes this error to occur. Despite the error, the stream does sometimes play.

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I no longer experience this with searching for 'brian eno' and using recent builds.

However, if one were to search for 'https://youtube.com/watch?v=DCpnKA7L8t8' and play the result perhaps it would trigger the bug. (forgive the terrible quality of the result, I tried to find a different one but haven't been successful.)

Looking at the formats of that video, there are many quality options available - a pretty standard video. So why it would return as an empty list is indeed odd.

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Some videos on youtube don't have audio streams available for download. That is one of them. I need to update the getbestaudio() function of the pafy.Stream class to handle this case, or catch the exception in pmsyt (or both).

$ ytdl DCpnKA7L8t8
Stream Type    Format Quality         Size            
------ ----    ------ -------         ----            
1      normal  webm   [640x360]        1 MB           
2      normal  mp4    [640x360]        1 MB           
3      normal  flv    [320x240]        1 MB           
4      normal  3gp    [320x240]        0 MB           
5      normal  3gp    [176x144]        0 MB     


youtube-dl --list-formats DCpnKA7L8t8
[youtube] Setting language
[youtube] DCpnKA7L8t8: Downloading webpage
[youtube] DCpnKA7L8t8: Downloading video info webpage
[youtube] DCpnKA7L8t8: Extracting video information
[info] Available formats for DCpnKA7L8t8:
format code extension resolution  note 
17          3gp       176x144     (worst)
36          3gp       320x240     
5           flv       400x240     
43          webm      640x360     
18          mp4       640x360     (best)

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oh, right! duh, it has lots of video options.

Would it be in the scope of the project to use video's audio stream if there exists no audio stream? In this case, it would use the webm/mp4 stream and just play it without video.

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Yes that would be a good way to handle it, using the mplayer -novideo flag (and its mpv equivalent). I will write a fix to do that.

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This is working for me now, tested with the video linked above. It falls back to using the audio in the video stream, suppressing video output when no audio is available.

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hm, I'm still getting the same error message/crash. Is there something else I should be doing?

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I should have said the changes I made were also in pafy so if you didn't do a pip upgrade, you'll need to make sure you have pafy 0.3.34

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Yep, I had just manually copied pmsyt to /usr/local/bin. Thanks, it works splendidly.

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