From: Tim Peters <tim.peters@gmail.com>
Date: Tue, 13 Aug 2002 23:29:21 +0000 (+0000)
Subject: _once():  Simplified dict manipulation.
X-Git-Tag: v2.3c1~4495
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=fd0f0c9f02feeae88e648d2df483717f307ab413;p=thirdparty%2FPython%2Fcpython.git

_once():  Simplified dict manipulation.
---

diff --git a/Lib/tempfile.py b/Lib/tempfile.py
index 32b83a0801ce..dff2ae937fc5 100644
--- a/Lib/tempfile.py
+++ b/Lib/tempfile.py
@@ -101,12 +101,12 @@ def _once(var, initializer):
     lock = _once_lock
 
     # Check first outside the lock.
-    if var in vars and vars[var] is not None:
+    if vars.get(var) is not None:
         return
     try:
         lock.acquire()
         # Check again inside the lock.
-        if var in vars and vars[var] is not None:
+        if vars.get(var) is not None:
             return
         vars[var] = initializer()
     finally: