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It has built-in support for schema validation, and can convert Java objects to an XML document and vice-versa.Castor and JAXB are other Java libraries that serve a similar purpose to XMLBeans. As far as libraries goes, pretty much the de-facto standard is Xerces2 which has both C and Java versions.For example:" is probably a network location, so it'll by default go out and hit the network with each and every validation, not always optimal.Here's an example that validates an XML file against any XSD's it references (even if it has to pull them from the network): You can avoid pulling referenced XSD's from the network, even though the xml files reference url's, by specifying the xsd manually (see some other answers here) or by using an "XML catalog" style resolver., my xml file does not validate" pass xml_file = open('my_xml_file.xml', 'r') xml_string = xml_file.read() xml_file.close() xml_validator(xml_string, '/path/to/my_schema_file.xsd') You can easily validate an XML file or tree against an XML Schema (XSD) with the xmlschema Python package.It's pure Python, available on Py Pi and doesn't have many dependencies. You should not use the DOMParser to validate a document (unless your goal is to create a document object model anyway). W3C_XML_SCHEMA_NS_URI); try catch (SAXException e) catch (IOException e) but you could just as easily validate against a local file.
The XML DOM (Document Object Model) defines the properties and methods for accessing and editing XML. From the javadocs: "If you create a schema without specifying a URL, file, or source, then the Java language creates one that looks in the document being validated to find the schema it should use. But sometimes it's convenient to be able to have a custom resolver...W3C_XML_SCHEMA_NS_URI); Schema schema = schema Schema(); Validator validator = Validator(); Resource Resolver(new LSResource Resolver() ); validator.validate(xml File); // parse an XML document into a DOM tree Document Builder parser = Document Builder Instance()Document Builder(); Document document = parser.parse(new File("instance.xml")); // create a Schema Factory capable of understanding WXS schemas Schema Factory factory = Schema Instance(XMLConstants.W3C_XML_SCHEMA_NS_URI); // load a WXS schema, represented by a Schema instance Source schema File = new Stream Source(new File("my Schema.xsd")); Schema schema = Schema(schema File); // create a Validator instance, which can be used to validate an instance document Validator validator = Validator(); // validate the DOM tree try catch (SAXException e) It validates against dtd and xsd. In debian squeeze it is located in the package "libxerces-c-samples".
I have an XML file and an XML schema in another file and I'd like to validate that my XML file adheres to the schema. I'd prefer something using the standard library, but I can install a third-party package if necessary. Surprisingly there aren't many python XML libraries that support this. import os from validator import Validator validator = Validator("path/to/scheme.xsd") # The directory with XML files XML_DIR = "path/to/directory" for file_name in os.listdir(XML_DIR): print(': '.format(file_name), end='') file_path = '/'.format(XML_DIR, file_name) if validator.validate(file_path): print('Valid! :(') from lxml import etree, objectify from lxml.etree import XMLSyntax Error def xml_validator(some_xml_string, xsd_file='/path/to/my_schema_file.xsd'): try: schema = etree.