Use iteritems to get rid of some property & key lookups.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@18548 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/XMLMatrix.py

@@ -204,17 +204,15 @@ class XMLMatrix(Folder):
 
       if self.index.has_key(base_id):
         # Look at each dimension i of the previous index
-        for i in self.index[base_id].keys():
+        for i, i_value in self.index[base_id].iteritems():
           # If the new index has the same dimensionality
           # Look at new location of cells
           if new_index.has_key(i):
             temp = {}
             # Look at each index in a given dimension i
-            for my_id in self.index[base_id][i].keys():
-              new_place = new_index[i].get(my_id)
-              old_place = self.index[base_id][i][my_id]
+            for my_id, my_value in i_value.iteritems():
               # create a movement in dimension i between old_place and new_place
-              temp[old_place] = new_place
+              temp[my_value] = new_index[i].get(my_id)
             movement[i] = temp
 
       # Rename every 'object_id' by 'temp_object_id'