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no stream information available

See original GitHub issue

Hi, I was trying to download this Video as described in the quickstart of the pytube-guide.

Why are there no information about the video formats available for some videos?

This is what happens when I follow the instructions in the quickstart:

Python 3.7.1 (default, Dec 10 2018, 22:54:23) [MSC v.1915 64 bit (AMD64)] on win32

from pytube import YouTube

yt = YouTube('https://www.youtube.com/watch?v=ZRCdORJiUgU')

yt.title
Out[4]: 'Google — Year in Search 2019'

Everything fine until here…

yt.thumbnail_url
Traceback (most recent call last):
  File "C:\Users\Samuel\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 3267, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-5-f4a3e63791c4>", line 1, in <module>
    yt.thumbnail_url
  File "C:\Users\Samuel\Anaconda3\lib\site-packages\pytube\__main__.py", line 261, in thumbnail_url
    return self.player_config_args['thumbnail_url']
KeyError: 'thumbnail_url'

KeyError: ‘thumbnail_url’ - currently not my main problem

But the following results are a problem…

yt.streams.all()
Out[6]: []

stream = yt.streams.first()

stream.download()
Traceback (most recent call last):
  File "C:\Users\Samuel\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 3267, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-8-0a171c2b4d83>", line 1, in <module>
    stream.download()
AttributeError: 'NoneType' object has no attribute 'download'

When I search for formats online with this tool there are no formats available for my target video. So yt.streams.all() only returns an empty list. Therefore the .download command obiously does not work.