Traceback (most recent call last):

 "/home/keito/repos/powerline/powerline/theme.py", line 82, in get_segments
contents = segment['contents_func'](pl=self.pl, segment_info=segment_info, **segment['args'])TypeError: modified_indicator() keywords must be strings
WARNING: Automatic signature extraction failed: Traceback (most recent call last):

 "youtube_dl\extractor\youtube.pyo", line 962, in _decrypt_signature

 "youtube_dl\extractor\youtube.pyo", line 530, in <lambda>

 "youtube_dl\extractor\youtube.pyo", line 525, in resf

 "youtube_dl\extractor\youtube.pyo", line 460, in interpret_statement

 "youtube_dl\extractor\youtube.pyo", line 513, in interpret_expressionExtractorError: Unsupported JS expression u'$y(a,7)'; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and