[lxml-dev] instance from schema

[Peter]

I'm looking for a freely available tool that can generate xml instance 
documents from an xml schema.  I'm aware of Sun's xmlgen, but I cannot 
find a valid web link to it.  Does anyone have a current link to Sun's 
xmlgen or know of a similar tool?

When writing such a tool, wouldn't you need to load the schema as an xml 
document, walk the tree, and output appropriate instance xml (probably 
not trivial, given xml schema's complexity)?

Thank you,

Peter