We have been trying to use the XMLSchema validation capabilities in order to validate the result that we get from a WMS server. We are having problems because the document that we are trying to validate lists multiple schemas in the schemaLocation attribute. Is there currently a way to accomplish this with lxml/libxml2? I have attached an example of what we are attempting. lxml: 2.2.2 libxml2: 2.7.3 Thank you, Aron