Not really important, just a comment.
In Python-3.7.0b5 we can find at the end of html/parser.py:
def unescape(self, s):
warnings.warn('The unescape method is deprecated and will be
removed '
'in 3.5, use html.unescape() instead.',
DeprecationWarning, stacklevel=2)
return unescape(s)
Vincent
(send at 08:07 GMT)