psutil

psutil (Python System and Process Utilities) is a cross-platform library: retrieve system utilization metrics and manage running processes.

psutil is your direct Python interface for comprehensive system monitoring and process management. The cross-platform library retrieves critical system utilization data: CPU times, memory usage (e.g., RSS, VMS), disk I/O, network connections, and hardware sensors. It consolidates the functionality of multiple UNIX command-line tools—like `ps`, `top`, `lsof`, and `netstat`—into a single, reliable API. Use it for system profiling, resource limiting, and process control, supporting major platforms: Linux, Windows, macOS, and various BSDs. Installation is simple: `pip install psutil`.

https://psutil.readthedocs.io/