diff options
Diffstat (limited to 'Python/Python-ast.c')
| -rw-r--r-- | Python/Python-ast.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/Python/Python-ast.c b/Python/Python-ast.c index 7b591dd..60b4626 100644 --- a/Python/Python-ast.c +++ b/Python/Python-ast.c @@ -5119,11 +5119,22 @@ ast_type_init(PyObject *self, PyObject *args, PyObject *kw) Py_ssize_t size = PySet_Size(remaining_fields); PyObject *field_types = NULL, *remaining_list = NULL; if (size > 0) { - if (!PyObject_GetOptionalAttr((PyObject*)Py_TYPE(self), &_Py_ID(_field_types), - &field_types)) { + if (PyObject_GetOptionalAttr((PyObject*)Py_TYPE(self), &_Py_ID(_field_types), + &field_types) < 0) { res = -1; goto cleanup; } + if (field_types == NULL) { + if (PyErr_WarnFormat( + PyExc_DeprecationWarning, 1, + "%.400s provides _fields but not _field_types. " + "This will become an error in Python 3.15.", + Py_TYPE(self)->tp_name + ) < 0) { + res = -1; + } + goto cleanup; + } remaining_list = PySequence_List(remaining_fields); if (!remaining_list) { goto set_remaining_cleanup; |