commit b663a2ccbdd9bbd9a13f0cea743af709c53ec0c1
author Fred Drake <fdrake@acm.org> Thu Sep 06 14:51:01 2001 +0000
committer Fred Drake <fdrake@acm.org> Thu Sep 06 14:51:01 2001 +0000
tree a5f922843d2754785a93696d4a96c68c668ef5bc
parent 7b219b4a926905a1357a70db4309ba52e0d7447d

Add __delitem__() support for WeakKeyDictionary.
This closes SF bug #458860.

Lib/weakref.py

diff --git a/Lib/weakref.py b/Lib/weakref.py
index 1d21e79..c71d04b 100644
--- a/Lib/weakref.py
+++ b/Lib/weakref.py
@@ -146,6 +146,13 @@
             del data[k]
         self._remove = remove
 
+    def __delitem__(self, key):
+        for ref in self.data.iterkeys():
+            o = ref()
+            if o == key:
+                del self.data[ref]
+                return
+
     def __getitem__(self, key):
         return self.data[ref(key)]