> Need to think about it more, I guess.
>

Agreed.  The set of xhtml attributes isn't huge, but there are some
opportunities
for confusion there: 'title' and 'id' come to mind, and what about
'xml:lang'?
Maybe the attributes should always be passed in a dictionary, and some
other
sugar-wrapper can be used to make it convenient to make an attributes
dictionary
to pass.


   def __init__(self, name, value=None, attributes=None)
         ...
         self.attributes = attributes or {}


Thing('age', value=3, attributes=sugar(title='ok'))