commit 64e2f9ac86b0f7aade2fe331136beceee975fc91
author Raymond Hettinger <python@rcn.com> Tue Nov 22 11:50:40 2016 -0800
committer Raymond Hettinger <python@rcn.com> Tue Nov 22 11:50:40 2016 -0800
tree 815acf15f2eaca9b6d833398643d683b48434e14
parent 02a4018c6e375cfa8d828fa7f4c34c9de82a3df2

Issue #27100:  Fix ref leak

Python/ceval.c

diff --git a/Python/ceval.c b/Python/ceval.c
index ebf073a..83296f6 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -3138,8 +3138,10 @@
             if (enter == NULL)
                 goto error;
             exit = special_lookup(mgr, &PyId___exit__);
-            if (exit == NULL)
+            if (exit == NULL) {
+                Py_DECREF(enter);
                 goto error;
+            }
             SET_TOP(exit);
             Py_DECREF(mgr);
             res = PyObject_CallFunctionObjArgs(enter, NULL);