Shows laptop power usage in realtime

power.py

#!/usr/bin/python3
from time import time, sleep
from pathlib import Path

itime = time()

totcurrent = 0
totvoltage = 0
totpower = 0
samples = 0

voltage_path = Path("/sys/class/power_supply/BAT0/voltage_now")
current_path = Path("/sys/class/power_supply/BAT0/current_now")
power_path = Path("/sys/class/power_supply/BAT0/power_now")
energy_path = Path("/sys/class/power_supply/BAT0/energy_now")

use_current = current_path.exists()

try:
    while True:
        voltage = int(open(voltage_path, "r").read()) / 1e6 # [µV]
        if use_current: # Some computers have one some have the other
          current = int(open(current_path, "r").read()) / 1e6 # [µA]
          power = current / voltage # [µW]
        else:
          power = int(open(power_path, "r").read()) / 1e6
          current = power / voltage

        remaining_joules = int(open(energy_path, "r").read()) / 1e6 # [µJ / h]
        samples += 1
        totcurrent += current
        avgcurrent = totcurrent / samples
        totvoltage += voltage
        avgvoltage = totvoltage / samples
        totpower += power
        avgpower = totpower / samples

        remaining_hs =  remaining_joules / power

        print(f"{current:.2f}A {voltage:.2f}V {power:.2f}W {' ' * 15}")
        print(f"[AVG over {time() - itime:.2f}s / {remaining_hs:.2f}hs left]  {avgcurrent:.2f}A {avgvoltage:.2f}V {avgpower:.2f}W\r", end="")
        sleep(1)
except KeyboardInterrupt:
    print("\n")

current_now not available for zorin os. Voltage can view. Nice work.