Python bindings: DOM casts everything to xmlNode
I noticed another issue with Python bindings of libxml: the access methods do
not cast the pointers to specific classes such as xmlDtd, xmlEntityDecl, etc.
For example, with the following document:
<?xml version="1.0"?>
<!DOCTYPE root [<!ELEMENT root EMPTY>]>
<root/>
the following script:
import libxml2
doc = libxml2.readFile("c.xml", None, libxml2.XML_PARSE_DTDLOAD)
print repr(doc.children)
prints:
<xmlNode (root) object at 0xb74963ec>
With properly cast nodes, it outputs the following:
<xmlDtd (root) object at 0xb746352c>
The latter object (xmlDtd) enables one to use DTD-specific methods such as
debugDumpDTD(), copyDTD(), and so on.
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