I saw the latest Python 3.11 5A release notes on the frame API changes. Do the notes mean the only officially supported way of accessing co_varnames is now through the Python interface and the inspect module? By using PyObject_GetAttrString?

Also, the documentation in the WhatsNew is a bit unclear as PyObject_GetAttrString(frame, "f_locals") doesn't work for PyFrameObject*, only PyObject* and it doesn't describe how to get the PyObject* version of FrameObject. The same problem also happens when trying to access the co_varnames field of the PyCodeObject*.