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-rw-r--r--Python/errors.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/Python/errors.c b/Python/errors.c
index cbcc6fa..c33bd13 100644
--- a/Python/errors.c
+++ b/Python/errors.c
@@ -24,6 +24,7 @@ PyErr_Restore(PyObject *type, PyObject *value, PyObject *traceback)
if (traceback != NULL && !PyTraceBack_Check(traceback)) {
/* XXX Should never happen -- fatal error instead? */
+ /* Well, it could be None. */
Py_DECREF(traceback);
traceback = NULL;
}