remove most uses of list(somedict.keys()) in Demo scripts
diff --git a/Demo/xml/elem_count.py b/Demo/xml/elem_count.py
index a2b4647..e083e64 100644
--- a/Demo/xml/elem_count.py
+++ b/Demo/xml/elem_count.py
@@ -15,7 +15,7 @@
         self._attrs = self._attrs + len(attrs)
         self._elem_types[name] = self._elem_types.get(name, 0) + 1
 
-        for name in list(attrs.keys()):
+        for name in attrs.keys():
             self._attr_types[name] = self._attr_types.get(name, 0) + 1
 
     def endDocument(self):
@@ -23,11 +23,11 @@
         print("There were", self._attrs, "attributes.")
 
         print("---ELEMENT TYPES")
-        for pair in  list(self._elem_types.items()):
+        for pair in  self._elem_types.items():
             print("%20s %d" % pair)
 
         print("---ATTRIBUTE TYPES")
-        for pair in  list(self._attr_types.items()):
+        for pair in  self._attr_types.items():
             print("%20s %d" % pair)