From fb3a630001ee40baa6f13743d32fd3a2756fcc3d Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Fri, 12 Jul 2013 00:37:30 +0200
Subject: [PATCH] Issue #18408: errors.c: in debug mode, calling
 PyErr_BadInternalCall() now fails with an assertion error

---
 Python/errors.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Python/errors.c b/Python/errors.c
index 1f955b54f04..34445b65ea4 100644
--- a/Python/errors.c
+++ b/Python/errors.c
@@ -675,6 +675,7 @@ _PyErr_BadInternalCall(const char *filename, int lineno)
 void
 PyErr_BadInternalCall(void)
 {
+    assert(0 && "bad argument to internal function");
     PyErr_Format(PyExc_SystemError,
                  "bad argument to internal function");
 }