如何在Python中返回系统信息？

import os
import platform

def get_system_info():
    system_info = {
        'system': platform.system(),
        'architecture': platform.machine(),
        'version': platform.version(),
        'python_version': platform.python_version(),
        'processor': platform.processor(),
        'ram': str(round(platform.total_physical_memory() / (1024 ** 3))) + " GB",
        'hostname': platform.node()
    }
    return system_info

print(get_system_info())