This question is almost the same as Preserving original doctype and declaration of an lxml.etree parsed xml
I want to preserve DOCTYPE declaration with namespace, but the same way of answers of the question above does not preserve declaration.
from lxml import etree
from StringIO import StringIO
xml_string = """<?xml version="1.0"?>
<!DOCTYPE rdf:RDF [
<!ENTITY xsd "http://www.w3.org/2001/XMLSchema#" >
<!ENTITY rdf "http://www.w3.org/1999/02/22-rdf-syntax-ns#" >
]>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<a>&xsd;</a>
</rdf:RDF>
"""
parse_tree = etree.parse(StringIO(xml_string))
encoding = parse_tree.docinfo.encoding
result = etree.tostring(parse_tree, xml_declaration=True, encoding=encoding)
print "%s\nparse ElementTree:\n%s\n" % ('-'*20, result)
and the output is:
--------------------
parse ElementTree:
<?xml version='1.0' encoding='UTF-8'?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<a>http://www.w3.org/2001/XMLSchema#</a>
</rdf:RDF>
Is there still any other way to preserve doctype declaration of original xml tree?
