Dev

CHANGELOG.rst

@@ -1,6 +1,12 @@
 Changelog
 =========
 
+2.21.1 (2026-08-08)
+-------------------
+
+- fix: computed field inheritance with pydantic 2.13
+
+
 2.21.0 (2026-05-17)
 -------------------
 

pydantic_xml/fields.py

@@ -239,6 +239,15 @@ def __post_init__(self) -> None:
         if config.REGISTER_NS_PREFIXES and self.nsmap:
             utils.register_nsmap(self.nsmap)
 
+    def __copy__(self) -> 'ComputedXmlEntityInfo':
+        return dc.replace(
+            self,
+            examples=self.examples.copy() if isinstance(self.examples, list) else self.examples,
+            json_schema_extra=self.json_schema_extra.copy()
+            if isinstance(self.json_schema_extra, dict)
+            else self.json_schema_extra,
+        )
+
 
 PropertyT = typing.TypeVar('PropertyT')
 

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pydantic-xml"
-version = "2.21.0"
+version = "2.21.1"
 description = "pydantic xml extension"
 authors = ["Dmitry Pershin <dapper1291@gmail.com>"]
 license = "Unlicense"

tests/test_computed_fields.py

@@ -42,6 +42,22 @@ def attr2(self) -> str:
     assert_xml_equal(actual_xml, xml)
 
 
+def test_inherited_computed_attr():
+    class BaseModel(BaseXmlModel):
+        @computed_attr
+        def attr(self) -> str:
+            return 'text'
+
+    class TestModel(BaseModel, tag='model'):
+        pass
+
+    xml = '''
+    <model attr="text" />
+    '''
+
+    assert_xml_equal(TestModel().to_xml(), xml)
+
+
 def test_computed_elements():
     class TestModel(BaseXmlModel, tag='model'):
         @computed_element(tag='element1')
@@ -65,6 +81,24 @@ def element2(self) -> str:
     assert_xml_equal(actual_xml, xml)
 
 
+def test_inherited_computed_element():
+    class BaseModel(BaseXmlModel):
+        @computed_element
+        def element(self) -> str:
+            return 'text'
+
+    class TestModel(BaseModel, tag='model'):
+        pass
+
+    xml = '''
+    <model>
+        <element>text</element>
+    </model>
+    '''
+
+    assert_xml_equal(TestModel().to_xml(), xml)
+
+
 def test_computed_nillable_elements():
     class TestModel(BaseXmlModel, tag='model'):
         @computed_element(tag='element1', nillable=True)