Python script to convert base58 format string to binary uint8 array of decimal numbers

frombase58.py

#!~/.pyenv/shims/python3

# Usage:
# frombase58.py 11111111111111111111111111111111
# Output:
# [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]

import base58
import sys

if len(sys.argv) != 2:
  print(f"Expecting argument of base58 string, not provided. Arguments: {sys.argv}")
  exit(1)

string_key = sys.argv[1]

byte_array = base58.b58decode(string_key)
json_string = "[" + ",".join(map(lambda b: str(b), byte_array)) + "]"
print(json_string)