psutil

8.0.0 · active · verified Sat Mar 28

psutil is a cross-platform library for retrieving information on running processes and system utilization (CPU, memory, disks, network, sensors) in Python. It is useful for system monitoring, profiling, limiting process resources, and managing running processes. The current version is 8.0.0, released on March 28, 2026, with a regular release cadence.

Warnings

breaking In version 8.0.0, the 'psutil.OSX' constant has been deprecated and replaced with 'psutil.MACOS'.
Fix: Replace 'psutil.OSX' with 'psutil.MACOS' in your code.
gotcha Ensure that psutil is installed in your environment to avoid ImportError.
Fix: Install psutil using 'pip install psutil'.

Install

pip install psutil Install psutil

Imports

psutil
```
import psutil
```
Ensure that psutil is installed in your environment to avoid ImportError.

Quickstart

This script demonstrates how to retrieve CPU times and list all running processes using psutil.

import psutil

# Get CPU times
cpu_times = psutil.cpu_times(percpu=False)
print(cpu_times)

# List all processes
for proc in psutil.process_iter(['pid', 'name']):
    print(proc.info)

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