[Zope-Checkins] SVN: Zope/trunk/src/OFS/Traversable.py Commit micro-optimization, tuple addition is faster for few elements

[Hanno Schlichting]

Log message for revision 122273:
  Commit micro-optimization, tuple addition is faster for few elements
  

Changed:
  U   Zope/trunk/src/OFS/Traversable.py

-=-
Modified: Zope/trunk/src/OFS/Traversable.py
===================================================================
--- Zope/trunk/src/OFS/Traversable.py	2011-07-17 18:53:15 UTC (rev 122272)
+++ Zope/trunk/src/OFS/Traversable.py	2011-07-17 19:29:41 UTC (rev 122273)
@@ -126,11 +126,11 @@
             if id is None:
                 id = self.getId()
 
+        path = (id, )
         p = aq_parent(aq_inner(self))
         if p is None:
-            return (id, )
+            return path
 
-        path = [id]
         func = self.getPhysicalPath.im_func
         while p is not None:
             if func is p.getPhysicalPath.im_func:
@@ -142,17 +142,16 @@
                     if pid is None:
                         pid = p.getId()
 
-                path.insert(0, pid)
+                path = (pid, ) + path
                 try:
                     p = p.__parent__
                 except AttributeError:
                     p = None
             else:
                 if IApplication.providedBy(p):
-                    path.insert(0, '')
-                    path = tuple(path)
+                    path = ('', ) + path
                 else:
-                    path = p.getPhysicalPath() + tuple(path)
+                    path = p.getPhysicalPath() + path
                 break
 
         return path