Naive XML Bindings for python

xsData is a complete data binding library for python allowing developers to access and use XML and JSON documents as simple objects rather than using DOM.

The code generator supports XML schemas, DTD, WSDL definitions, XML & JSON documents. It produces simple dataclasses with type hints and simple binding metadata.

The included XML and JSON parser/serializer are highly optimized and adaptable, with multiple handlers and configuration properties.

xsData is constantly tested against the W3C XML Schema 1.1 test suite.

Getting started

$ # Install all dependencies
$ pip install xsdata[cli,lxml,soap]

$ # Generate models
$ xsdata generate tests/fixtures/primer/order.xsd --package tests.fixtures.primer

>>> from tests.fixtures.primer import PurchaseOrder
>>> from xsdata.formats.dataclass.parsers import XmlParser
>>>
>>> parser = XmlParser()
>>> order = parser.parse("tests/fixtures/primer/sample.xml", PurchaseOrder)
>>> order.bill_to
Usaddress(name='Robert Smith', street='8 Oak Avenue', city='Old Town', state='PA', zip=Decimal('95819'), country='US')

Check the documentation for more ✨✨✨

Features

Code Generator

• XML Schemas 1.0 & 1.1
• WSDL 1.1 definitions with SOAP 1.1 bindings
• DTD external definitions
• Directly from XML and JSON Documents
• Extensive configuration to customize output
• Pluggable code writer for custom output formats

Default Output

• Pure python dataclasses with metadata
• Type hints with support for forward references and unions
• Enumerations and inner classes
• Support namespace qualified elements and attributes

Data Binding

• XML and JSON parser, serializer
• PyCode serializer
• Handlers and Writers based on lxml and native xml python
• Support wildcard elements and attributes
• Support xinclude statements and unknown properties
• Customize behaviour through config

Changelog: 26.10 (2026-10-16)

Security

• Disable external entity resolution in LxmlEventHandler by default (#1228)

Fixes

• Fix wrapper binding when collection item element name is reused (#1224)
• Fix KeyError in is_binding_model when models_package is not set (#1219)
• Validate calendar date in XmlDate.from_string (#1227)
• Add charset to the SOAP client content-type header (#1231)
• Skip xsi:nil for a present instance of a type without content (#1234)
• Skip None text when binding wildcard list elements (#1237)

Features

• Share compiled jinja templates across generators (#1235)
• Add third-party license notices for bundled schemas and graphs util (#1238)