It is a new name of former_PyObject_LookupAttr() added in#76752.

intPyObject_GetOptionalAttr(PyObject*obj,PyObject*attr_name,PyObject**result);

Discussion about making it public and naming:https://discuss.python.org/t/make-pyobject-lookupattr-public/29104.

See also other new functions with similar interface in#106307 and#106004.

Linked PRs

• gh-106521: Add PyObject_GetOptionalAttr() function #106522
• gh-106521: Remove _PyObject_LookupAttr() function #106642