xmlschema incorrectly reports validation failure for IODD1.1 schema and validated example files. Python 3.13

[AScholan]

General

IODD is an XML format hardware description file used for IO-Link process control hardware. There is a published standard, schema, and examples. The following link gives access to the publish standard: IO Device Description Specification V1.1.4 (with Schemas and Standard Definitions).

Issue

When using xmlschema with Python 3.13 to validate at least one XML example file the validate method raises a validation failure. See logs at end.

How to reproduce

Example Repo

Clone repo: AScholan/XmlSchemaError

This includes the schema files, the example xml file and the python script that demonstrates the error.

System configuration

OS: Windows 10
Python: 3.13.1
xmlschema: 3.4.3

Instructions

1. pip install the requirements.txt file.
2. Execute script xmlschema_error.py.

Logs

Below are logs generated from the script above.

C:\RnD\io-link\projects\XmlSchemaError\.venv\Scripts\python.exe C:\RnD\io-link\projects\XmlSchemaError\xmlschema_error.py 
Traceback (most recent call last):
  File "C:\RnD\io-link\projects\XmlSchemaError\xmlschema_error.py", line 8, in <module>
    schema.validate(EXAMPLES_DIR / 'IO-Link-01-BasicDevice-20211215-IODD1.1.xml')
    ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\RnD\io-link\projects\XmlSchemaError\.venv\Lib\site-packages\xmlschema\validators\schemas.py", line 1707, in validate
    for error in self.iter_errors(source, path, schema_path, use_defaults,
                 ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                  namespaces, max_depth, extra_validator,
                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                  validation_hook, allow_empty, use_location_hints,
                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                  validation='strict'):
                                  ^^^^^^^^^^^^^^^^^^^^
  File "C:\RnD\io-link\projects\XmlSchemaError\.venv\Lib\site-packages\xmlschema\validators\schemas.py", line 1838, in iter_errors
    for result in xsd_element.iter_decode(elem, **kwargs):
                  ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
  File "C:\RnD\io-link\projects\XmlSchemaError\.venv\Lib\site-packages\xmlschema\validators\elements.py", line 857, in iter_decode
    yield self.validation_error(validation, error, obj, **kwargs)
          ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\RnD\io-link\projects\XmlSchemaError\.venv\Lib\site-packages\xmlschema\validators\xsdbase.py", line 250, in validation_error
    raise error
xmlschema.validators.exceptions.XMLSchemaValidationError: failed validating <Element '{http://www.io-link.com/IODD/2010/10}IODevice' at 0x000001FF080F9620> with XsdElement(name='iodd:IODevice', occurs=[1, 1]):

Reason: value ('ioddsample01',) not found for XsdKey(name='iodd:ProductRef_ProductId')

Schema component:

  <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="IODevice">
      <xsd:complexType>
          <xsd:sequence>
              <xsd:element name="DocumentInfo" type="DocumentInfoT" />
              <xsd:element name="ProfileHeader" type="ProfileHeaderT" />
              <xsd:element name="ProfileBody" type="ProfileBodyT" />
              <xsd:element name="CommNetworkProfile" type="CommNetworkProfileT" />
              <xsd:element name="ExternalTextCollection" type="ExternalTextCollectionT">
                  <xsd:unique name="Language">
                      <xsd:selector xpath="iodd:PrimaryLanguage|iodd:Language" />
                      <xsd:field xpath="@xml:lang" />
                  </xsd:unique>
              </xsd:element>
              <xsd:element name="Stamp" type="StampT">
                  <xsd:annotation>
                      <xsd:documentation>Filled out by the IODD Checker.</xsd:documentation>
                  </xsd:annotation>
              </xsd:element>
          </xsd:sequence>
      </xsd:complexType>
      ...
      ...
  </xsd:element>

Instance type: <class 'xml.etree.ElementTree.Element'>

Instance:

  <IODevice xmlns="http://www.io-link.com/IODD/2010/10" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.io-link.com/IODD/2010/10 IODD1.1.xsd">
    <DocumentInfo version="V1.00.000" releaseDate="2021-12-15" copyright="Copyright IO-Link Community 2021" />
    <ProfileHeader>
      <ProfileIdentification>IO Device Profile</ProfileIdentification>
      <ProfileRevision>1.1</ProfileRevision>
      <ProfileName>Device Profile for IO Devices</ProfileName>
      <ProfileSource>IO-Link Consortium</ProfileSource>
      <ProfileClassID>Device</ProfileClassID>
      <ISO15745Reference>
        <ISO15745Part>1</ISO15745Part>
        <ISO15745Edition>1</ISO15745Edition>
        <ProfileTechnology>IODD</ProfileTechnology>
      </ISO15745Reference>
    </ProfileHeader>
    <ProfileBody>
      <DeviceIdentity vendorId="65535" deviceId="1" vendorName="IO-Link Community">
        <VendorText textId="T_VendorText" />
        <VendorUrl textId="T_VendorUrl" />
        <VendorLogo name="IO-Link-logo.png" />
        <DeviceName textId="T_DeviceName" />
    ...
    ...
  </IODevice>

Path: /IODevice