info.py

#!/usr/bin/python3

import psutil

def get_cpu_tempfunc():
    """ Return CPU temperature """
    result = 0
    mypath = "/sys/class/thermal/thermal_zone0/temp"
    with open(mypath, 'r') as mytmpfile:
        for line in mytmpfile:
            result = line

    result = float(result)/1000
    result = round(result, 1)
    return str(result)


def get_gpu_tempfunc():
    """ Return GPU temperature as a character string"""
    res = os.popen('/opt/vc/bin/vcgencmd measure_temp').readline()
    return res.replace("temp=", "")


def get_cpu_use():
    """ Return CPU usage using psutil"""
    cpu_cent = psutil.cpu_percent()
    return str(cpu_cent)


def get_ram_info():
    """ Return RAM usage using psutil """
    ram_cent = psutil.virtual_memory()[2]
    return str(ram_cent)


def get_swap_info():
    """ Return swap memory  usage using psutil """
    swap_cent = psutil.swap_memory()[3]
    return str(swap_cent)