How do I validate xml against a DTD file in Python

Question

I need to validate an XML string (and not a file) against a DTD description file.

How can that be done in python?

Answer 1

Another good option is lxml's validation which I find quite pleasant to use.

A simple example taken from the lxml site:

from StringIO import StringIO  from lxml import etree  dtd = etree.DTD(StringIO("""<!ELEMENT foo EMPTY>""")) root = etree.XML("<foo/>") print(dtd.validate(root)) # True  root = etree.XML("<foo>bar</foo>") print(dtd.validate(root)) # False print(dtd.error_log.filter_from_errors()) # <string>:1:0:ERROR:VALID:DTD_NOT_EMPTY: Element foo was declared EMPTY this one has content