gh-144851: Fix __lazy_import__ crash with user-defined filters (#144852)

2026-05-06 12:49:07 -04:00 · 2026-03-02 12:01:32 +01:00
parent 3b276f3f59
commit 8bcb3eaa67
2 changed files with 9 additions and 0 deletions
@@ -4512,6 +4512,10 @@ _PyImport_LazyImportModuleLevelObject(PyThreadState *tstate,
            assert(!PyErr_Occurred());
            modname = Py_NewRef(Py_None);
        }
+        if (fromlist == NULL) {
+            assert(!PyErr_Occurred());
+            fromlist = Py_NewRef(Py_None);
+        }
        PyObject *args[] = {modname, name, fromlist};
        PyObject *res = PyObject_Vectorcall(filter, args, 3, NULL);