Extended zjturner's changes to encompass all function dispatch and use PyErr_WriteUnraisable to handle exceptions during __del__.

Also added test cases for the unnamed temporary destruction that is throwing assertions in Python 3.5.

Examples/test-suite/python/Makefile.in

@@ -58,6 +58,7 @@ CPP_TEST_CASES += \
 	primitive_types \
 	python_abstractbase \
 	python_append \
+	python_destructor_exception \
 	python_director \
 	python_docstring \
 	python_nondynamic \

Examples/test-suite/python/python_destructor_exception_runme.py

@@ -0,0 +1,14 @@
+import python_destructor_exception
+from StringIO import StringIO
+import sys
+
+#buffer = StringIO()
+#sys.stderr = buffer
+
+attributeErrorOccurred = False
+try:
+    python_destructor_exception.ClassWithThrowingDestructor().GetBlah()
+except AttributeError, e:
+    attributeErrorOccurred = True
+
+assert attributeErrorOccurred

Examples/test-suite/python_destructor_exception.i

@@ -0,0 +1,17 @@
+/* File : example.i */
+%module python_destructor_exception
+%include exception.i
+
+%exception ClassWithThrowingDestructor::~ClassWithThrowingDestructor()
+{
+  $action
+  SWIG_exception(SWIG_RuntimeError, "I am the ClassWithThrowingDestructor dtor doing bad things");
+}
+
+%inline %{
+class ClassWithThrowingDestructor
+{
+};
+
+%}
+