Issue #18408: PyObject_Call() now fails with an assertion error in debug mode
if the function called failed whereas no exception was raised, to detect bugs
earlier.
diff --git a/Objects/abstract.c b/Objects/abstract.c
index 244dcaf..6896600 100644
--- a/Objects/abstract.c
+++ b/Objects/abstract.c
@@ -2104,10 +2104,16 @@
return NULL;
result = (*call)(func, arg, kw);
Py_LeaveRecursiveCall();
- if (result == NULL && !PyErr_Occurred())
+#ifdef NDEBUG
+ if (result == NULL && !PyErr_Occurred()) {
PyErr_SetString(
PyExc_SystemError,
"NULL result without error in PyObject_Call");
+ }
+#else
+ if (result == NULL)
+ assert(PyErr_Occurred());
+#endif
return result;
}
PyErr_Format(PyExc_TypeError, "'%.200s' object is not callable",