fdo#34699 some pythonsamples not visible on Mac OS X

node.expr is a Node of type "Tuple", not a builtin tuple datatype, thus
python 2.3 did fail with TypeError: iteration over non-sequence

scripting/source/pyprov/pythonscript.py

@@ -361,7 +361,7 @@ class ProviderContext:
             elif node.__class__.__name__ == 'Assign':
                 for assignee in node.nodes:
                     if assignee.name == 'g_exportedScripts':
-                        for item in node.expr:
+                        for item in node.expr.nodes:
                             if item.__class__.__name__ == 'Name':
                                 g_exportedScripts.append(item.name)
                         return g_exportedScripts