Get some OS info with psutils

os_info.py

import os
import time

import psutil
import humanfriendly

now = time.time()
pid = os.getgid()
ppid = os.getppid()

current_process = psutil.Process(pid=ppid)
process_uptime = current_process.create_time()
process_uptime_delta = now - process_uptime
process_uptime_human = humanfriendly.format_timespan(process_uptime_delta)

system_uptime = psutil.boot_time()
system_uptime_delta = now - system_uptime
system_uptime_human = humanfriendly.format_timespan(system_uptime_delta)

free_memory = psutil.disk_usage('/').free
total_memory = psutil.disk_usage('/').total
percent_used_memory = psutil.disk_usage('/').percent
used_memory = psutil.disk_usage('/').used
free_memory_human = humanfriendly.format_size(free_memory