commit 6a1cd1b3b14e204468132605008f1ac62d12151c
author Antoine Pitrou <solipsis@pitrou.net> Mon Feb 27 00:45:12 2012 +0100
committer Antoine Pitrou <solipsis@pitrou.net> Mon Feb 27 00:45:12 2012 +0100
tree dbc165fa7f3e60aa2c63cef4c8a4551d2a7f61ea
parent 92904d3a4aafa0437e2d614cef607cbf11860957

Issue #13521: dict.setdefault() now does only one lookup for the given key, making it "atomic" for many purposes.
Patch by Filip Gruszczyński.

Misc/NEWS

diff --git a/Misc/NEWS b/Misc/NEWS
index 7be7777..8460cdd 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -9,6 +9,9 @@
 Core and Builtins
 -----------------
 
+- Issue #13521: dict.setdefault() now does only one lookup for the given key,
+  making it "atomic" for many purposes.  Patch by Filip Gruszczyński.
+
 - Issue #13020: Fix a reference leak when allocating a structsequence object
   fails.  Patch by Suman Saha.