[XML-SIG] SAX parser factories (Was: PyTRaX?)

[Martin v. Loewis]

> Can you still specify a parser to avoid the iteration?  

Certainly.

> What about setting a default?

I think PY_SAX_PARSER needs continued support, if for no other reason
than backwards compatibility. The question is how it would integrate
with properties requested by the application. There is no issue if the
application did not request any features, or if the PY_SAX_PARSER(s)
support the requested features.

Regards,
Martin