[Python-Dev] Py_SIZE vs PyXXX_GET_SIZE

[Antoine Pitrou]

On Mon, 20 Mar 2017 13:26:34 +0200
Serhiy Storchaka <storchaka at gmail.com> wrote:
> What is the preferable way of getting the size of tuple, list, bytes, 
> bytearray: Py_SIZE or PyTuple_GET_SIZE, PyList_GET_SIZE, 
> PyBytes_GET_SIZE, PyByteArray_GET_SIZE? Are macros for concrete types 
> more preferable or they are outdated?

+1 for using concrete macros.  Py_SIZE is a low-level internal thing
(e.g. it will return a negative size on negative ints).

Regards

Antoine.