Changed to positive test for punning, instead of TypeError

Pushed with no verify as the pylint errors are due to pylint upgrade
which finds errors in other parts of the core. This is addressed in another PR.

ontopy/ontodoc.py

@@ -393,29 +393,29 @@ def itemdoc(
         if hasattr(item, "instances"):
             points = []
             for instance in item.instances():
-                try:
-                    if item in instance.is_instance_of:
-                        points.append(
-                            point_style.format(
-                                point=asstring(instance, link_style),
-                                ontology=onto,
-                            )
-                        )
-                    if points:
-                        value = points_style.format(
-                            points="".join(points), ontology=onto
-                        )
-                        doc.append(
-                            annotation_style.format(
-                                key="Individuals", value=value, ontology=onto
-                            )
-                        )
-                except TypeError:
+                if isinstance(instance.is_instance_of, property):
                     warnings.warn(
                         f'Ignoring instance "{instance}" which is both and '
                         "indivudual and class. Ontodoc does not support "
                         "punning at the present moment."
                     )
+                    continue
+                if item in instance.is_instance_of:
+                    points.append(
+                        point_style.format(
+                            point=asstring(instance, link_style),
+                            ontology=onto,
+                        )
+                    )
+                if points:
+                    value = points_style.format(
+                        points="".join(points), ontology=onto
+                    )
+                    doc.append(
+                        annotation_style.format(
+                            key="Individuals", value=value, ontology=onto
+                        )
+                    )
 
         return "\n".join(doc)