cipher regex error

I get the following output when trying to download a video

Traceback (most recent call last):
  File "/local/targaryen/Documents/workspace/video_representation_learning/utils/video_utils.py", line 281, in download_video
    video = stream.download(video_path, filename=video_id)
  File "/local/targaryen/Documents/workspace/video_representation_learning/utils/video_utils.py", line 195, in download_video
    yt = pytube.YouTube(video_url)
  File "/raid/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/streams.py", line 228, in download
    self.on_progress(chunk, fh, bytes_remaining)
  File "/raid/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/__main__.py", line 88, in __init__
    self.prefetch_init()
  File "/raid/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/streams.py", line 272, in on_progress
    file_handler.write(chunk)
  File "/raid/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/__main__.py", line 97, in prefetch_init
    self.init()
  File "/raid/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/__main__.py", line 133, in init
    mixins.apply_signature(self.player_config_args, fmt, self.js)
  File "/raid/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/mixins.py", line 49, in apply_signature
    signature = cipher.get_signature(js, stream['s'])
KeyboardInterrupt
KeyError: 's'

The interesting/surprising thing is if I try to download the same video again, I don’t get the error. The video I’m trying to download is https://www.youtube.com/watch?v=VAAcbCb1meE&has_verified=1 This isn’t specific to this one video, it seems to happen on many.

I separately see a different error consistently on some videos.

Traceback (most recent call last):
  File "experiment_scripts/test_each_video.py", line 52, in test_video_id
    yt = pytube.YouTube(video_url)
  File "/home/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/__main__.py", line 88, in __init__
    self.prefetch_init()
  File "/home/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/__main__.py", line 97, in prefetch_init
    self.init()
  File "/home/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/__main__.py", line 130, in init
    mixins.apply_descrambler(self.player_config_args, fmt)
  File "/home/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/mixins.py", line 89, in apply_descrambler
    for i in stream_data[key].split(',')
KeyError: 'url_encoded_fmt_stream_map'

for video https://www.youtube.com/watch?v=YP05PC3ReW0&has_verified=1

  File "experiment_scripts/test_each_video.py", line 52, in test_video_id
    yt = pytube.YouTube(video_url)
  File "/home/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/__main__.py", line 88, in __init__
    self.prefetch_init()
  File "/home/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/__main__.py", line 97, in prefetch_init
    self.init()
  File "/home/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/__main__.py", line 130, in init
    mixins.apply_descrambler(self.player_config_args, fmt)
  File "/home/xkcd/miniconda3/envs/video-env/lib/python3.7/site-packages/pytube/mixins.py", line 89, in apply_descrambler
    for i in stream_data[key].split(',')
KeyError: 'url_encoded_fmt_stream_map'

for video https://www.youtube.com/watch?v=TRXwkqNGpWA&has_verified=1

They’re probably unrelated bugs, but they both have issues with the parsing I think.

[danielgordon10]

https://github.com/minwook-shin/pytube/commit/f7ed32da09b6387713b15c7eb3ff5f17516e7ea2 seems to fix some of the errors for me.

[Alexll82]

I have the same problem:

Traceback (most recent call last): File "C:\Users\Alex\YandexDisk\python\pytube\pytube_1.py", line 6, in <module> yt = YouTube(line) File "C:\Users\Alex\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pytube\__main__.py", line 88, in __init__ self.prefetch_init() File "C:\Users\Alex\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pytube\__main__.py", line 97, in prefetch_init self.init() File "C:\Users\Alex\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pytube\__main__.py", line 133, in init mixins.apply_signature(self.player_config_args, fmt, self.js) File "C:\Users\Alex\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pytube\mixins.py", line 49, in apply_signature signature = cipher.get_signature(js, stream['s']) KeyError: 's'

This problem appear on different computers and different versions of python: Python 3.6, Python 3.7, win7, win8, pytube 9.5.0

Recommendations found on the Internet did not help. Modify the cipher.py file