In the Linux platform, pip install psutil install python psutil package, the following error:
psutil/_psutil_common.c:9:20: fatal error: Python.h: No such file or directory
The reason is not installed python-devel (ubuntu is python-dev) package.
If you need to install python3 python3-devel, (Ubuntu is python3-dev)
After installation is complete, you can perform pip install psutil.