simple script to wrap raspberry pi health wrap, tested on ubuntu 20.04 on a model 3 B.

checkPi.py

#!/usr/bin/env python3
import subprocess

HEALTH_CHECK = 'sudo vcgencmd get_throttled'
MESSAGES = {
    0: 'Under-voltage!',
    1: 'ARM frequency capped!',
    2: 'Currently throttled!',
    3: 'Soft temperature limit active',
    16: 'Under-voltage has occurred since last reboot.',
    17: 'Throttling has occurred since last reboot.',
    18: 'ARM frequency capped has occurred since last reboot.',
    19: 'Soft temperature limit has occurred'
}

print("Checking...")

output = subprocess.check_output(HEALTH_CHECK, shell=True)
decoded = bin(int(output.decode("utf-8").split('=')[1], 0))
warnings = 0
code_len = len(decoded)

for idx, el in enumerate(decoded):
    if decoded[code_len-idx-1] == "1":
        print(f"WARNING: {MESSAGES[idx]}\n")
        warning = 1

if warnings == 0:
    print("Looking good!")
else:
    print("Houston, we may have a problem!")