Portable way of detecting number of *usable* CPUs in Python

Question

Per this question and answer -- Python multiprocessing.cpu_count() returns '1' on 4-core Nvidia Jetson TK1 -- the output of Python\'s multiprocessing.cpu_count()<

Answer 1

Use psutil:

from the doc https://psutil.readthedocs.io/en/latest/:

>>> import psutil
>>> psutil.cpu_count()
4
>>> psutil.cpu_count(logical=False)  # Ignoring virtual cores
2

This is portable