import psutil
import json


def getInfo():
  info = dict()
  info['cpu'] = psutil.cpu_percent()

  ram = psutil.virtual_memory()
  info['ram'] = (ram.used, ram.total)

  storage = psutil.disk_usage('/')
  info['storage'] = (storage.used, storage.total)

  pack = psutil.net_io_counters()
  info['packages'] = (pack.packets_sent, pack.packets_recv)
  info['errors'] = (pack.errin, pack.errout)

  return json.dumps(info)


if __name__ == '__main__':
  print(getInfo())