spelling_bee.py

dictionary = open('/usr/share/dict/words')
letters = ['n', 'j', 'u', 'l', 'r', 'o', 'a']
center = 'a'


def contains_bad_letters(word):
    for letter in word:
        if letter not in letters:
            return True
    return False


def pangram(word):
    if len(word) < 7:
        return False
    for letter in letters:
        if letter not in word:
            return False
    return True


for word in dictionary:
    word = word[:-1]
    if len(word) < 4:
        continue
    if word[0].isupper():
        continue
    if center not in word:
        continue
    if contains_bad_letters(word):
        continue
    if pangram(word):
        print('*', end='')
    print(word)