get_throttled

#!/usr/bin/env python3

# See: https://gist.github.com/dasl-/f875535b2b71bcab0f1215a1b39b52cf

import pprint
import subprocess

throttled_output = subprocess.check_output(('vcgencmd', 'get_throttled')).decode("utf-8")
throttled_output = throttled_output.strip()
if throttled_output[-3:] == '0x0':
    throttled_output = '0x00000'
throttled_output = throttled_output[-5:]

throttling_map = {
    'under_voltage_detected': 0,
    'arm_frequency_capped': 0,
    'currently_throttled': 0,
    'soft_temperature_limit_active': 0,
    'under_voltage_has_occurred': 0,
    'arm_frequency_capping_has_occurred': 0,
    'throttling_has_occurred': 0,
    'soft_temperature_limit_has_occurred': 0,
}
index_offset = 16
for i in range(len(throttled_output)):
    char = throttled_output[i]

    # Ex:
    # '1'        -> '0001'
    # 'd' or 'D' -> '1101'
    binary = bin(int(char, 16))[2:].zfill(4)
    for j in range(len(binary)):
        if binary[j] == '1':
            bit_index = index_offset + len(binary) - j - 1
            if bit_index == 0:
                throttling_map['under_voltage_detected'] = 1
            elif bit_index == 1:
                throttling_map['arm_frequency_capped'] = 1
            elif bit_index == 2:
                throttling_map['currently_throttled'] = 1
            elif bit_index == 3:
                throttling_map['soft_temperature_limit_active'] = 1
            elif bit_index == 16:
                throttling_map['under_voltage_has_occurred'] = 1
            elif bit_index == 17:
                throttling_map['arm_frequency_capping_has_occurred'] = 1
            elif bit_index == 18:
                throttling_map['throttling_has_occurred'] = 1
            elif bit_index == 19:
                throttling_map['soft_temperature_limit_has_occurred'] = 1

    index_offset -= 4

pp = pprint.PrettyPrinter(sort_dicts=False)
pp.pprint(throttling_map)