Last Updated on 2020-10-05 by Clay
Introduction
When we developing a Python project, sometimes we need to check which OS is user's current operating system, because of different operating systems we may have to use different methods to implement the same function.
In my recent project, I also need to know how many CPU cores the user has to implement a multi-threaded program, so, by the way, it is recorded here.
simply put, the platform module can be used to test the user operating system, and the cpu_count() function in multiprocessing module can be used to calculate the number of CPU cores.
Operating system
Checking the operating system is actually quite easy.
# -*- coding: utf-8 -*-
import platform
print(platform.system())
Output:
Windows
As you can see, my operating system is Windows and my other operating system is Linux.
Output:
Like this.
Each operating system returned should be as follows:
Linux: Linux Windows: Windows MacOS: Darwin JVM: Java
CPU Cores
And then, how do we count the number of CPU cores?
from multiprocessing import cpu_count
print(cpu_count())
Output:
8
As you can see, my CPU has a total of 8 cores.
References
- https://docs.python.org/3.6/library/platform.html
- https://docs.python.org/3/library/multiprocessing.html