pythoningLearning
diff --git a/‎opc/package.py‎
Lines changed: 10 additions & 0 deletions b/‎opc/package.py‎
Lines changed: 10 additions & 0 deletions
diff --git a/‎tests/test_package.py‎
Lines changed: 4 additions & 0 deletions b/‎tests/test_package.py‎
Lines changed: 4 additions & 0 deletions
@@ -66,6 +66,16 @@ def partname(self):
         """
         return self._partname
 
+    def _after_unmarshal(self):
+        """
+        Entry point for post-unmarshaling processing, for example to parse
+        the part XML. May be overridden by subclasses without forwarding call
+        to super.
+        """
+        # don't place any code here, just catch call if not overridden by
+        # subclass
+        pass
+
 
 class PartFactory(object):
     """
 
@@ -58,6 +58,10 @@ def it_remembers_its_construction_state(self):
         assert part.content_type == content_type
         assert part.partname == partname
 
+    def it_can_be_notified_after_unmarshalling_is_complete(self):
+        part = Part(None, None, None)
+        part._after_unmarshal()
+
 
 class DescribePartFactory(object):