[XML-SIG] DTD parsing error

[Konrad Hinsen]

I am trying to work on a DocBook file (XML version 4.1) using Python 
2.2 or 2.3 and PyXML 0.8.3 (xml.ext.reader.Sax2). I get the error 
message

ERROR: Construct started, but never completed at 
/sw/share/xml/dtd/docbookx/4.1/docbook.cat:59:79
TEXT: '
'
Position 79 of line 59 is the end of the file.

The same script worked fine a year ago, using some earlier PyXML 
release.

Any idea what's going wrong?

Konrad.