Fix (and add test for) missing check for BaseException subclasses in the C
API.
diff --git a/Python/errors.c b/Python/errors.c
index a64900b..67f86ed 100644
--- a/Python/errors.c
+++ b/Python/errors.c
@@ -47,6 +47,15 @@
void
PyErr_SetObject(PyObject *exception, PyObject *value)
{
+ if (exception != NULL &&
+ !PyExceptionClass_Check(exception)) {
+ PyObject *excstr = PyObject_Repr(exception);
+ PyErr_Format(PyExc_SystemError,
+ "exception %s not a BaseException subclass",
+ PyString_AS_STRING(excstr));
+ Py_DECREF(excstr);
+ return;
+ }
Py_XINCREF(exception);
Py_XINCREF(value);
PyErr_Restore(exception, value, (PyObject *)NULL);