changeset:   104987:7a996e826f83
branch:      3.6
parent:      104985:f7308820bb7a
user:        Yury Selivanov <yury@magic.io>
date:        Tue Nov 08 16:54:18 2016 -0500
files:       Misc/NEWS Python/ast.c
description:
Issue #26182: Fix ia refleak in code that raises DeprecationWarning.


diff -r f7308820bb7a -r 7a996e826f83 Misc/NEWS
--- a/Misc/NEWS	Tue Nov 08 23:13:36 2016 +0200
+++ b/Misc/NEWS	Tue Nov 08 16:54:18 2016 -0500
@@ -18,6 +18,8 @@
   should result in PendingDeprecationWarning in 3.5 and in
   DeprecationWarning in 3.6.
 
+- Issue #26182: Fix ia refleak in code that raises DeprecationWarning.
+
 Library
 -------
 
diff -r f7308820bb7a -r 7a996e826f83 Python/ast.c
--- a/Python/ast.c	Tue Nov 08 23:13:36 2016 +0200
+++ b/Python/ast.c	Tue Nov 08 16:54:18 2016 -0500
@@ -944,17 +944,19 @@
         PyObject *message = PyUnicode_FromString(
             "'async' and 'await' will become reserved keywords"
             " in Python 3.7");
+        int ret;
         if (message == NULL) {
             return 1;
         }
-        if (PyErr_WarnExplicitObject(
+        ret = PyErr_WarnExplicitObject(
                 PyExc_DeprecationWarning,
                 message,
                 c->c_filename,
                 LINENO(n),
                 NULL,
-                NULL) < 0)
-        {
+                NULL);
+        Py_DECREF(message);
+        if (ret < 0) {
             return 1;
         }
     }