Issue 6256: Fix stacklevel in warning message.

rhettinger · rhettinger · commit fde29be4d7f3 · 2009-06-10T16:13:42.000Z
diff --git a/Lib/contextlib.py b/Lib/contextlib.py
@@ -103,7 +103,7 @@ def nested(*managers):
 
     """
     warn("With-statements now directly support multiple context managers",
-        DeprecationWarning, 2)
+        DeprecationWarning, 3)
     exits = []
     vars = []
     exc = (None, None, None)
