Traceback (most recent call last):

 "/usr/lib64/python2.7/site-packages/youtube_dl/YoutubeDL.py", line 633, in extract_info
ie_result = ie.extract(url)

 "/usr/lib64/python2.7/site-packages/youtube_dl/extractor/common.py", line 270, in extract
return self._real_extract(url)

 "/usr/lib64/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 1066, in _real_extract
encrypted_sig, video_id, player_url, age_gate)

 "/usr/lib64/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 645, in _decrypt_signature
'Signature extraction failed: ' + tb, cause=e)ExtractorError: Signature extraction failed: Traceback (most recent call last):
Traceback (most recent call last):


 "/Library/Frameworks/Python.framework/Versions/3.5/bin/xonsh", line 3, in <module>

main()


 "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/xonsh/main.py", line 221, in main

shell.shell.cmdloop()


 "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/xonsh/readline_shell.py", line 399, in cmdloop

self._cmdloop(intro=intro)


 "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/xonsh/readline_shell.py", line 359, in _cmdloop

line = self.singleline()


 "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/xonsh/readline_shell.py", line 249, in singleline

rtn = input(self.prompt)


 "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/xonsh/proc.py", line 759, in _signal_int

if self.proc.poll() is not None:
AttributeError: 'NoneType' object has no attribute 'poll'
