UTF-8 Problem

[chris2fr]

MacBook-Pro-de-Christopher:data chris$ ever2text cmannnotes.enex --output everout/ --format markdown
Traceback (most recent call last):
File "/usr/local/bin/ever2text", line 9, in
load_entry_point('ever2text==0.3', 'console_scripts', 'ever2text')()
File "/Library/Python/2.7/site-packages/ever2text/core.py", line 51, in main
converter.convert()
File "/Library/Python/2.7/site-packages/ever2text/converter.py", line 87, in convert
notes = self.prepare_notes(xml_tree)
File "/Library/Python/2.7/site-packages/ever2text/converter.py", line 72, in prepare_notes
converted_text = self._convert_note_to_text(title, raw_text)
File "/Library/Python/2.7/site-packages/ever2text/converter.py", line 94, in _convert_note_to_text
html2plain.feed(text.decode('utf8'))
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/encodings/utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 178: ordinal not in range(128)