Traceback (most recent call last):

 "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 1511, in _real_extract
playlist_title = self._og_search_title(page)

 "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 428, in _og_search_title
return self._og_search_property('title', html, *_kargs)

 "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 416, in _og_search_property
escaped = self._search_regex(self._og_regexes(prop), html, name, flags=re.DOTALL, *_kargs)

 "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 356, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)RegexNotFoundError: Unable to extract OpenGraph title; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type
youtube-dl -U
to update.
Traceback (most recent call last):


 "/home/salmon/Documents/MoralAI/scan_dense_results.py", line 83, in <module>

"Classification accuracy against " + test_name)


 "/home/salmon/Documents/MoralAI/scan_dense_results.py", line 71, in generate_plots

fig1.show()


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/figure.py", line 437, in show

manager.show()


 "/home/salmon/pycharm-2018.3.2/helpers/pycharm_matplotlib_backend/backend_interagg.py", line 107, in show

self.canvas.show()


 "/home/salmon/pycharm-2018.3.2/helpers/pycharm_matplotlib_backend/backend_interagg.py", line 63, in show

FigureCanvasAgg.draw(self)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/backends/backend_agg.py", line 402, in draw

self.figure.draw(self.renderer)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/artist.py", line 50, in draw_wrapper

return draw(artist, renderer, *args, **kwargs)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/figure.py", line 1649, in draw

renderer, self, artists, self.suppressComposite)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/image.py", line 138, in _draw_list_compositing_images

a.draw(renderer)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/artist.py", line 50, in draw_wrapper

return draw(artist, renderer, *args, **kwargs)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/axes/_base.py", line 2628, in draw

mimage._draw_list_compositing_images(renderer, self, artists)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/image.py", line 138, in _draw_list_compositing_images

a.draw(renderer)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/artist.py", line 50, in draw_wrapper

return draw(artist, renderer, *args, **kwargs)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/axis.py", line 1185, in draw

ticks_to_draw = self._update_ticks(renderer)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/axis.py", line 1023, in _update_ticks

tick_tups = list(self.iter_ticks())
# iter_ticks calls the locator


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/axis.py", line 967, in iter_ticks

majorLocs = self.major.locator()


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/ticker.py", line 1985, in __call__

return self.tick_values(vmin, vmax)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/ticker.py", line 1993, in tick_values

locs = self._raw_ticks(vmin, vmax)


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/ticker.py", line 1932, in _raw_ticks

nbins = np.clip(self.axis.get_tick_space(),


 "/home/salmon/Documents/MoralAI/venv/lib/python3.6/site-packages/matplotlib/axis.py", line 2159, in get_tick_space

return int(np.floor(length / size))
ValueError: cannot convert float NaN to integer
