"KeyError: 'video_fps'" when trying to convert youtube webm to mp3

I’m downloading audio in mp4/web containers using Pytube, but I’m getting “KeyError: ‘video_fps’” when trying to convert them to mp3 with moviepy.

Code: import moviepy.editor as mp from pytube import YouTube

#download video youtubeurl = "https://www.youtube.com/watch?v=jYypQueS3ew&index=3&list=PL1nNuwHORUCPajRTocTSCJheaMzbWRu23&t=0s" yt = YouTube(youtubeurl) stream = yt.streams.filter(subtype='webm',only_audio=True).last().download("/home/jaws/Desktop/Stuff/Moosepy/temp/", filename="temp_audio") print stream print "Done!"

#convert to mp3 clip = mp.VideoFileClip("/home/jaws/Desktop/Stuff/Moosepy/temp/temp_audio.webm").subclip() clip.audio.write_audiofile("audio.mp3") print "Done!"

Output:

Traceback (most recent call last): File “/home/jaws/Desktop/Stuff/Moosepy/test.py”, line 13, in <module> clip = mp.VideoFileClip(“/home/jaws/Desktop/Stuff/Moosepy/temp/temp_audio.webm”).subclip() File “/home/jaws/.local/lib/python2.7/site-packages/moviepy/video/io/VideoFileClip.py”, line 91, in init fps_source=fps_source) File “/home/jaws/.local/lib/python2.7/site-packages/moviepy/video/io/ffmpeg_reader.py”, line 34, in init self.fps = infos[‘video_fps’] KeyError: ‘video_fps’

Am I missing the codec? It converts mp4 and Webm video files to mp3 fine. It’s just these weird audio files in webm/mp4 containers that won’t convert. I guess since the FPS is 0, that’s throwing up the error? How can I get around this? ` Moviepy 0.2.3.5 Python 2.7.12

[sh0tzz]

I got this problem when trying to do this for my personal mp3 yt downloader. I got the solution. Instead of using VideoFileClip and its VideoFileClip.audio, just use AudioFileClip. This worked for me. If you have trouble with this, use the full path instead of the relative path shown here.

# mp4 to mp3
clip = AudioFileClip('testfile.mp4')
clip.write_audiofile('testfile.mp3')
clip.close()

[2879786424]

The error occurs when the video doesn’t contain any visual content, ensure you are uploading a video which is not blank.

some videos doesn`t have visual content but have audio,how can I get the audio with mp3