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-rw-r--r--Modules/_testcapimodule.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/Modules/_testcapimodule.c b/Modules/_testcapimodule.c
index 494937a..995d789 100644
--- a/Modules/_testcapimodule.c
+++ b/Modules/_testcapimodule.c
@@ -961,6 +961,10 @@ exception_print(PyObject *self, PyObject *args)
if (!PyArg_ParseTuple(args, "O:exception_print",
&value))
return NULL;
+ if (!PyExceptionInstance_Check(value)) {
+ PyErr_Format(PyExc_TypeError, "an exception instance is required");
+ return NULL;
+ }
tb = PyException_GetTraceback(value);
PyErr_Display((PyObject *) Py_TYPE(value), value, tb);