>>> def convert(html):
...     return BeautifulSoup(html,
...         convertEntities=BeautifulSoup.HTML_ENTITIES,
...         markupMassage=hexentityMassage).contents[0].string
...
>>> soup = convert(string)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 3, in convert
AttributeError: type object 'BeautifulSoup' has no attribute 'HTML_ENTITIES'