Fixed #4067 by implementing _attributes and _fields for the AST root node.
diff --git a/Python/Python-ast.c b/Python/Python-ast.c
index 1c78515..cabc666 100644
--- a/Python/Python-ast.c
+++ b/Python/Python-ast.c
@@ -615,11 +615,29 @@
return 0;
}
+static int add_ast_fields()
+{
+ PyObject *empty_tuple, *d;
+ if (PyType_Ready(&AST_type) < 0)
+ return -1;
+ d = AST_type.tp_dict;
+ empty_tuple = PyTuple_New(0);
+ if (!empty_tuple ||
+ PyDict_SetItemString(d, "_fields", empty_tuple) < 0 ||
+ PyDict_SetItemString(d, "_attributes", empty_tuple) < 0) {
+ Py_XDECREF(empty_tuple);
+ return -1;
+ }
+ Py_DECREF(empty_tuple);
+ return 0;
+}
+
static int init_types(void)
{
static int initialized;
if (initialized) return 1;
+ if (add_ast_fields() < 0) return 0;
mod_type = make_type("mod", &AST_type, NULL, 0);
if (!mod_type) return 0;
if (!add_attributes(mod_type, NULL, 0)) return 0;