commit 906f95e80bfdd801470cf8225ff9e6f99cd98187
author Raymond Hettinger <python@rcn.com> Mon Mar 23 04:42:18 2009 +0000
committer Raymond Hettinger <python@rcn.com> Mon Mar 23 04:42:18 2009 +0000
tree 73fe6589431aa4d6509ed45d209da5cf7966983a
parent f1e2df978070319b97252ad077690739c31b461e

Move initialization of root link to __init__.

Lib/collections.py

diff --git a/Lib/collections.py b/Lib/collections.py
index 2c2355e..f0f1fbb 100644
--- a/Lib/collections.py
+++ b/Lib/collections.py
@@ -41,11 +41,12 @@
         try:
             self.__root
         except AttributeError:
+            self.__root = _Link()       # sentinel node for the doubly linked list
             self.clear()
         self.update(*args, **kwds)
 
     def clear(self):
-        self.__root = root = _Link()    # sentinel node for the doubly linked list
+        root = self.__root
         root.prev = root.next = root
         self.__map = {}
         dict.clear(self)