Updated readme and main script

examples/datamodel_as_rdf/README.md

@@ -1,5 +1,12 @@
 Datamodels as RDF
 =================
-This example will show how DLite and Pydantic data models can be serialised to RDF.
+This example will show how DLite and Pydantic data models can be
+serialised to RDF.
 
-The example requires that you have Pydantic v1.x installed.
+Two examples are included:
+- **pydantic_nested**: Shows serialisation of nested pydantic models into RDF.
+  Works for both Pydantic v1 and v2.
+- **dataresource**: Shows serialisation of a Pydantic model of a OTEAPI
+  dataresource to RDF.  This example has two versions, one for Pydantic v1
+  ([dataresource.py](dataresource.py)) and one for Pydantic v2
+  ([dataresource_pydantic2.py](dataresource_pydantic2.py)).

examples/datamodel_as_rdf/main.py

@@ -1,3 +1,15 @@
 """Main script running all tests in this repo."""
-import pydantic_nested
-import dataresource
+import pydantic
+
+
+pydantic_major = int(pydantic.__version__.split(".")[0])
+
+# Run examples
+import pydantic_nested  # works for both Pydantic v1 and v2
+
+if pydantic_major == 1:
+    # Only Pydantic v1
+    import dataresource
+elif pydantic_major == 2:
+    # Only Pydantic v2
+    import dataresource_pydantic2