Hey, Thanks for this bug report. Pretty weird.. Florian Wagner wrote:

Executing the following script results in an error with lxml-0.6:

from lxml.etree import Element,dump,parse

root = Element('root')

add = parse('test.xml') root.append(add.getroot())

dump(root)

Even more bizarre is that a valgrind run of this script: from lxml.etree import Element, dump, parse root = Element('root') add = parse('test.xml') root.append(Element('baz')) results in memory errors as well. If I remove the parse call the thing is fine, even though 'add' is in fact never used. If I remove the .append call (and just parse) everything's fine too! This will need some digging; I think we're triggering some weird corner case of lxml's automatic management here that I didn't consider, and this type of stuff tends to be fairly hard to debug. Regards, Martijn