Traceback (most recent call last):

 "/usr/local/bin/mitmproxy", line 67, in <module>
m.run()

 "/Library/Python/2.7/site-packages/libmproxy/console/__init__.py", line 583, in run
self.ui.run_wrapper(self.loop)

 "/Library/Python/2.7/site-packages/urwid/raw_display.py", line 242, in run_wrapper
return fn()

 "/Library/Python/2.7/site-packages/libmproxy/console/__init__.py", line 812, in loop
k = self.view.keypress(size, k)

 "/Library/Python/2.7/site-packages/urwid/container.py", line 1103, in keypress
return self.body.keypress( (maxcol, remaining), key )

 "/Library/Python/2.7/site-packages/libmproxy/console/flowview.py", line 546, in keypress
self.master.spawn_external_viewer(conn.content, t)

 "/Library/Python/2.7/site-packages/libmproxy/console/__init__.py", line 546, in spawn_external_viewer
subprocess.call(cmd, shell=shell)

 "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 493, in call
return Popen(*popenargs, **kwargs).wait()

 "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 679, in __init__
errread, errwrite)

 "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1228, in _execute_child
raise child_exceptionOSError: [Errno 2] No such file or directory
Traceback (most recent call last):


 "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1162, in _decrypt_signature

video_id, player_url, s


 "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1073, in _extract_signature_function

res = self._parse_sig_js(code)


 "/usr/lib/python3/dist-packages/youtube_dl/extractor/youtube.py", line 1134, in _parse_sig_js

jscode, 'Initial JS player signature function name', group='sig')


 "/usr/lib/python3/dist-packages/youtube_dl/extractor/common.py", line 782, in _search_regex

raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see
https://yt-dl.org/update
on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
