commit 18a1ffcda373fad5f60c187217d7c2125bccf005
author Raymond Hettinger <python@rcn.com> Fri Feb 08 23:02:27 2008 +0000
committer Raymond Hettinger <python@rcn.com> Fri Feb 08 23:02:27 2008 +0000
tree 6e78866a38a40ee72472fc0a14f698ae94e8f1ef
parent 0913166da2629a567c7acdb70511a1b2347000fb

Speed-up __iter__() mixin method.

Lib/_abcoll.py

diff --git a/Lib/_abcoll.py b/Lib/_abcoll.py
index 6c27e66..30ec7d4 100644
--- a/Lib/_abcoll.py
+++ b/Lib/_abcoll.py
@@ -496,13 +496,13 @@
 
     def __iter__(self):
         i = 0
-        while True:
-            try:
+        try:
+            while True:
                 v = self[i]
-            except IndexError:
-                break
-            yield v
-            i += 1
+                yield v
+                i += 1
+        except IndexError:
+            return
 
     def __contains__(self, value):
         for v in self: