Traceback (most recent call last):

 "./Package Control.py", line 3689, in on_done

 "./Package Control.py", line 3653, in disable_packageAttributeError: 'unicode' object has no attribute 'append'
Traceback (most recent call last):

 "/sw/build.build/mutagen-py27-1.22-2/mutagen-1.22/tests/test_tools_mid3v2.py", line 110, in test_artist_escape
res, out = self.call("-e", "-a", "foo\\nbar", self.filename)

 "/sw/build.build/mutagen-py27-1.22-2/mutagen-1.22/tests/test_tools.py", line 32, in call
ret = self._main([self.TOOL_NAME] + list(args))

 "tools/mid3v2", line 345, in main
write_files(parser.edits, args, options.escape)

 "tools/mid3v2", line 147, in write_files
value = value.decode(enc)LookupError: unknown encoding: 