[XML-SIG] Skipped entities under SAX

[Derek Fountain]

> > I'm only guessing the above, and it seems that the expat parser doesn't
> > entertain such ideas. AFAICT, if it comes across an entity which it
> > doesn't recognise, it throws an error.
>
> Why are you saying this? It works for me just fine:
<snip!>

Yes, your example works for me too. However, the same code with my XML sample 
didn't work. It raises an exception:

xml.sax._exceptions.SAXParseException: ./bookmarks.xml:8:10: undefined entity

It turns out that the problem is my lack of a DTD declaration. If I add an 
external DTD declaration:

<!DOCTYPE BOOKMARKS SYSTEM 'x.dtd'>

then it works.

Why might that be?

-- 
> eatapple
core dump