[py-dev] handling of 'class' attribute by py.xml.html

[William McVey]

I needed to be able to construct html elements with the 'class'
attribute, in order to properly style the element with a set of
pre-existing stylesheets. Ordinarily, you would think that this could be
something as simple as:

	from py.xml import html
	html.div(class="somestyleclass")

This obviously doesn't work because 'class' is a reserved word in
python. I "solved" this using a quick hack in my local copy of the
library by adding a quick hack that maps named parameter 'Class' to
attribute 'class'. It's certainly not elegant, but it is effective. The
diff to py/xmlobj/html.py is attached.

  -- William
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