pydantic-xml

• named tuple support added. See

• dynamic model creation support added. See

• mypy plugin dataclass_transform decorated model bug fixed.

• PEP-681 (Data Class Transforms) support added. See
• pydantic 2.7 enum type support added. See

• pydantic 2.6 incompatibility fixed. See https://github.com/dapper91/pydantic-xml/issues/167

• union collection deserialization bug fixed. See https://github.com/dapper91/pydantic-xml/pull/165.

• mypy plugin added. See https://pydantic-xml.readthedocs.io/en/latest/pages/misc.html#mypy.
• optional raw element bug fixed. See https://github.com/dapper91/pydantic-xml/issues/158.

Validation errors enhanced:

• validation errors provide the full path to the malformed field (including nested sub-models).
• error text contain the xml document source line where the error occurred (lxml parser only).

See https://github.com/dapper91/pydantic-xml/pull/150.

• nillable element support added. See https://github.com/dapper91/pydantic-xml/pull/146.

• adjacent sub-elements support added. See https://github.com/dapper91/pydantic-xml/pull/143.

• attributes with default namespace bug fixed. See https://github.com/dapper91/pydantic-xml/issues/137.

• bool type encoding format changed from 'True' to 'true'. See https://github.com/dapper91/pydantic-xml/issues/126.
• None type encoding format changed from 'None' to ''.

• root model default value bug fixed.
• python 3.12 support added.

• raw element missing tail bug fixed. See https://github.com/dapper91/pydantic-xml/issues/118.

• model validator 'before' mode support added.

• model level skip_empty parameter added.
• wrapped element extra entities checking bugs fixed.

• pydantic extra='forbid' parameter is being applied to xml elements too. See https://github.com/dapper91/pydantic-xml/pull/106.

• raw element typed fields support added. See https://github.com/dapper91/pydantic-xml/issues/14.
• pydantic field exclude flag bug fixed (works only for serialization now).

library upgraded to pydantic version 2. See https://docs.pydantic.dev/2.0/migration/

Breaking changes:

• generic models are no longer inherited from BaseGenericXmlModel but from BaseXmlModel.
• custom root type declaration has been changed. It must inherit RootXmlModel from now on.
• encoding customization api has been changed. See for more information.

New features:

• element attributes can be bound to TypedDict. See for more information.
• tagged unions support added. See for more information.
• computed entities support added. See for more information.

• decimal type support added.
• unparameterized root models serializer generation bug fixed. Affected by https://github.com/pydantic/pydantic/pull/7119.