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XSD (XML Schema Definition), a recommendation of the World Wide Web Consortium (W3C), specifies how to formally describe the elements in an Extensible Markup Language (XML) document.
It can be used by programmers to verify each piece of item content in a document.
This is one of the more significant ways in which XML Schema differs from DTDs.
For example, an attribute might be constrained to hold only a valid date or a decimal number.
Simple types (also called data types) constrain the textual values that may appear in an element or attribute.
You need Python installed obviously (I’ll be using Python 3, but the codes should work in Python 2 with minimal modifications).
You’ll also need the lxml package to handle schema validations.
Often when working with XML documents, it’s required that we validate our document with a predefined schema.
These schemas usually come in XSD (XML Schema Definition) files and while there are commercial and open source applications that can do these validations, it’s more flexible and a good learning experience to do it using Python.
If you want to validate against multiple schemata, use one validation set per schema.