spirech-cli/captcha/captcha.py

import pyfiglet
import os

chars = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']

def randomification(chars):
    captcha = list()

    while len(captcha) != 3:
        char = int(str(list(os.urandom(1))[0]))
        if char > 0 and char <= 25: 
            captcha.append(chars[char])

    ASCII = pyfiglet.figlet_format(str(captcha[0])+str(captcha[1])+str(captcha[2]))
    print(ASCII)

randomification(chars)