[BUG] get_throttling_function_name could not find match for multiple

[B-BoyPro]

Describe the bug Having issues resolving video URLs for a give youtube video. I get the following error pytube.exceptions.RegexMatchError: get_throttling_function_name: could not find match for multiple

To Reproduce Please provide the following information: The video or playlist url that is causing the error. https://www.youtube.com/watch?v=Y4-GSFKZmEg

from pytube import YouTube
url = "https://www.youtube.com/watch?v=Y4-GSFKZmEg"
yt = YouTube(url)
thevid = yt.streams.filter(progressive=True, file_extension='mp4').order_by('resolution').desc().first()
vid = thevid
print("VID", vid)
Expected behavior
the output should print the video asset URL where the video can be downloaded from

Expected behavior the output should print the video asset URL where the video can be downloaded from

Output

Traceback (most recent call last):
  File "/Users/par/Dev/mememaker-web/mememaker/scripts/pytube_test.py", line 5, in <module>
    thevid = yt.streams.filter(progressive=True, file_extension='mp4').order_by('resolution').desc().first()
  File "/Users/par/.virtualenvs/mememaker/lib/python3.11/site-packages/pytube/__main__.py", line 296, in streams
    return StreamQuery(self.fmt_streams)
  File "/Users/par/.virtualenvs/mememaker/lib/python3.11/site-packages/pytube/__main__.py", line 188, in fmt_streams
    extract.apply_signature(stream_manifest, self.vid_info, self.js)
  File "/Users/par/.virtualenvs/mememaker/lib/python3.11/site-packages/pytube/extract.py", line 409, in apply_signature
    cipher = Cipher(js=js)
  File "/Users/par/.virtualenvs/mememaker/lib/python3.11/site-packages/pytube/cipher.py", line 43, in __init__
    self.throttling_plan = get_throttling_plan(js)
  File "/Users/par/.virtualenvs/mememaker/lib/python3.11/site-packages/pytube/cipher.py", line 405, in get_throttling_plan
    raw_code = get_throttling_function_code(js)
  File "/Users/par/.virtualenvs/mememaker/lib/python3.11/site-packages/pytube/cipher.py", line 311, in get_throttling_function_code
    name = re.escape(get_throttling_function_name(js))
  File "/Users/par/.virtualenvs/mememaker/lib/python3.11/site-packages/pytube/cipher.py", line 296, in get_throttling_function_name
    raise RegexMatchError(
pytube.exceptions.RegexMatchError: get_throttling_function_name: could not find match for multiple

System information Python 3.11.9 print(pytube.version) 15.0.0 python -m pip install git+https://github.com/pytube/pytube

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[underhappy]

same problem

[williansebastiao]

Isn't there a solution that doesn't involve changing the cipher? This is just a palliative.

[bernarducs]

There is a pull request waiting for merging.

https://github.com/pytube/pytube/pull/1962

I got this error and the PR above fix it.

[aslimohitdeveloper]

Fixed just install pytube from repo aslimohitdeveloper/pytube_fix by pip install git+https://github.com/aslimohitdeveloper/pytube_fix and enjoy!

[silvncr]

Can I ask why this problem hasn't happened before? Does it mean YouTube changed something on their end?

edit: forgot to thank @aslimohitdeveloper for the fix 😊