Monitor the temparture of processors on Linux

monitor_temp.py

#!/usr/bin/env python3

def get_temp(socket_id):
    thermal_zone = '/sys/class/thermal/thermal_zone' + socket_id
    with open(thermal_zone + '/temp') as temp:
        return int(temp.read()) / 1000.0 # + 273.15

if __name__ == '__main__':
    import json
    import sys

    if len(sys.argv) == 1:
        print('''Usage: monitor_temp.py socket_id [socket_id...]

Examples:
$ monitor_temp.py 0 # monitor processor 0
$ monitor_temp.py 0 2 # 3P or more, 2 of them will be monitored
''')
        sys.exit('Please specify sockets to be monitored.')

    temps = {}

    for socket_id in sys.argv[1:]:
        temps['socket' + socket_id] = get_temp(socket_id)

    print(json.dumps(temps))