bpo-35348: platform.architecture() doc suggests sys.maxsize by vstinner · Pull Request #11208 · python/cpython

sys.maxsize gives you the size of Py_ssize_t. On most platforms this is the same as the pointer size, but it is not guaranteed.

But I do not think that this addition is needed. platform.architecture() without arguments give you the bittness of the running Python interpreter. It does not try to guess it by parsing the file output.