Prefetch gets key error on "url_encoded_fmt_stream_map"

Pytube was working just fine earlier and then, while I was downloading a few videos, it crashed somewhere among the middle, and it hasn’t functioned on a single video since, including videos I have successfully downloaded in the past. This applies both to python code, and the command line interface. It crashes on any “YouTube([link])”.

The error is the following (always the same):

C:\Users\Robly\talos>pytube v=0XpgchQnaUY --list
Traceback (most recent call last):
  File "c:\code\python3\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "c:\code\python3\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Code\Python3\Scripts\pytube.exe\__main__.py", line 9, in <module>
  File "c:\code\python3\lib\site-packages\pytube\cli.py", line 58, in main
    display_streams(args.url)
  File "c:\code\python3\lib\site-packages\pytube\cli.py", line 182, in display_streams
    yt = YouTube(url)
  File "c:\code\python3\lib\site-packages\pytube\__main__.py", line 81, in __init__
    self.prefetch_init()
  File "c:\code\python3\lib\site-packages\pytube\__main__.py", line 90, in prefetch_init
    self.init()
  File "c:\code\python3\lib\site-packages\pytube\__main__.py", line 117, in init
    mixins.apply_descrambler(self.vid_info, fmt)
  File "c:\code\python3\lib\site-packages\pytube\mixins.py", line 76, in apply_descrambler
    for i in stream_data[key].split(',')
KeyError: 'url_encoded_fmt_stream_map'

[J0K3RAS]

Ok. So the problem is witth pytube 7.0.18. Installing the latest version 8.0.X solved the problem

[coconutattitude]

Still receiving this on pytube 9.5.3 File “/home/feelthebern/anaconda3/lib/python3.7/site-packages/pytube/mixins.py”, line 96, in apply_descrambler for i in stream_data[key].split(‘,’) KeyError: ‘url_encoded_fmt_stream_map’