ERROR: Signature extraction failed: Traceback (most recent call last):


 "lib\youtube_dl\extractor\youtube.py", line 1057, in _decrypt_signature

video_id, player_url, s


 "lib\youtube_dl\extractor\youtube.py", line 971, in _extract_signature_function

errnote='Download of %s failed' % player_url)


 "lib\youtube_dl\extractor\common.py", line 529, in _download_webpage

res = self._download_webpage_handle(url_or_request, video_id, note, errnote, fatal, encoding=encoding, data=data, headers=headers, query=query)


 "lib\youtube_dl\extractor\common.py", line 436, in _download_webpage_handle

urlh = self._request_webpage(url_or_request, video_id, note, errnote, fatal, data=data, headers=headers, query=query)


 "lib\youtube_dl\extractor\common.py", line 416, in _request_webpage

return self._downloader.urlopen(url_or_request)


 "lib\youtube_dl\YoutubeDL.py", line 2000, in urlopen

req = sanitized_Request(req)


 "lib\youtube_dl\utils.py", line 525, in sanitized_Request

return compat_urllib_request.Request(sanitize_url(url), *args, **kwargs)


 "C:\Users\Tony\AppData\Local\Programs\Python\Python35-32\lib\urllib\request.py", line 269, in __init__

self.full_url = url


 "C:\Users\Tony\AppData\Local\Programs\Python\Python35-32\lib\urllib\request.py", line 295, in full_url

self._parse()


 "C:\Users\Tony\AppData\Local\Programs\Python\Python35-32\lib\urllib\request.py", line 324, in _parse

raise ValueError("unknown url type: %r" % self.full_url)
ValueError: unknown url type: '/yts/jsbin/player-en_US-vflV3n15C/base.js'

Traceback (most recent call last):


 "c:\repos\load-forecasts\.venv\lib\site-packages\bokeh\application\handlers\code_runner.py", line 197, in run

exec(self._code, module.__dict__)


 "C:\repos\load-forecasts\test_error.py", line 14, in <module>

pn.pane.Perspective(df, columns=df.columns).servable()


 "c:\repos\load-forecasts\.venv\lib\site-packages\panel\pane\base.py", line 111, in __init__

super().__init__(object=object, **params)


 "c:\repos\load-forecasts\.venv\lib\site-packages\panel\reactive.py", line 593, in __init__

super().__init__(**params)


 "c:\repos\load-forecasts\.venv\lib\site-packages\panel\reactive.py", line 71, in __init__

super().__init__(**params)


 "c:\repos\load-forecasts\.venv\lib\site-packages\panel\viewable.py", line 509, in __init__

super().__init__(**params)


 "c:\repos\load-forecasts\.venv\lib\site-packages\panel\viewable.py", line 370, in __init__

super().__init__(**params)


 "c:\repos\load-forecasts\.venv\lib\site-packages\panel\viewable.py", line 217, in __init__

super().__init__(**params)


 "c:\repos\load-forecasts\.venv\lib\site-packages\param\parameterized.py", line 2522, in __init__

self.param._setup_params(**params)


 "c:\repos\load-forecasts\.venv\lib\site-packages\param\parameterized.py", line 1065, in override_initialization

fn(parameterized_instance, *args, **kw)


 "c:\repos\load-forecasts\.venv\lib\site-packages\param\parameterized.py", line 1313, in _setup_params

setattr(self, name, val)


 "c:\repos\load-forecasts\.venv\lib\site-packages\param\parameterized.py", line 318, in _f

return f(self, obj, val)


 "c:\repos\load-forecasts\.venv\lib\site-packages\param\parameterized.py", line 892, in __set__

self._validate(val)


 "c:\repos\load-forecasts\.venv\lib\site-packages\param\__init__.py", line 1381, in _validate

raise ValueError("List '%s' must be a list."%(self.name))
ValueError: List 'columns' must be a list.
