Validating with an XML schema in Python

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. How do I do this in Python?

I’d prefer something using the standard library, but I can install a third-party package if necessary.

Answer

I am assuming you mean using XSD files. Surprisingly there aren’t many python XML libraries that support this. lxml does however. Check Validation with lxml. The page also lists how to use lxml to validate with other schema types.