Conditional validation of documents (ignoring IDREFs)

[zgolus]

I'm working with one extra large XML file which consists of many parts.
Every part can be considered a stand-alone document with references to
other parts (IDs and IDREFs). I would like to be able to validate every
such part against a DTD but ignoring errors which arise from broken
references. Can I do it with pyxml?

Thanks in advance!