Using Python and lxml to validate XML against an external DTD

Question

I\'m trying to validate an XML file against an external DTD referenced in the doctype tag. Specifically:

Answer 1

You need to add no_network=False when constructing the parser object. This option is set to True by default.

From the documentation of parser options at http://lxml.de/parsing.html#parsers:

no_network - prevent network access when looking up external documents (on by default)