gistfile1.txt

import os, random

WORDLIST_PATHS = [os.path.join('/', 'usr', 'share', 'dict', 'words')]
DEFAULT_MESSAGE = "Are you sure you want to do this?"
WORD_PROMPT = '  [%d/%d] Type "%s" to continue (^C quits): '

def prevent_horrible_accidents(msg=DEFAULT_MESSAGE, horror_rating=1):
    """Prompt the user to enter random words to prevent doing something stupid."""
    valid_wordlist_paths = [wp for wp in WORDLIST_PATHS if os.path.exists(wp)]

    if not valid_wordlist_paths:
        abort('No wordlists found!')

    with open(valid_wordlist_paths[0]) as wordlist_file:
        words = wordlist_file.readlines()

    print msg
    for i in range(int(horror_rating)):
        word = words[random.randint(0, len(words))].strip()
        p_msg = WORD_PROMPT % (i+1, horror_rating, word)

        answer = prompt(p_msg, validate=r'^%s$' % word)