commit 7eab0d000cd12d76f90d4a80df1b728d3ff94728
author Victor Stinner <victor.stinner@gmail.com> Mon Jul 15 21:16:27 2013 +0200
committer Victor Stinner <victor.stinner@gmail.com> Mon Jul 15 21:16:27 2013 +0200
tree 356f24116259d365aef312972cc4663f56a4f2e1
parent a4ced86f0307d60c491261501f53a99cefcc33d2

Issue #18408: Fix PyEval_EvalFrameEx() for MemoryError

Don't pass a NULL traceback to PyException_SetTraceback(): pass Py_None.
Passing NULL would raise a new exception.

Python/ceval.c

diff --git a/Python/ceval.c b/Python/ceval.c
index 61928e3..5a35524 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -3090,7 +3090,10 @@
                    Python main loop. */
                 PyErr_NormalizeException(
                     &exc, &val, &tb);
-                PyException_SetTraceback(val, tb);
+                if (tb != NULL)
+                    PyException_SetTraceback(val, tb);
+                else
+                    PyException_SetTraceback(val, Py_None);
                 Py_INCREF(exc);
                 tstate->exc_type = exc;
                 Py_INCREF(val);