Program to cheat at the iOS game Word Laces

lacewords.py

from itertools import permutations


class LaceWords:
    def __init__(self, dictionary=None, interface=None):
        self.dictionary = dictionary
        if not dictionary:
            self.dictionary = 'scrabble_2020_dict'
        self.interface = interface
        if not self.interface:
            self.interface = LaceWordsInterface
        self.words = self.open_dictionary()

    def open_dictionary(self):
        return [word.lower() for word in open(self.dictionary, 'r').read().split('\n')]

    def cheat_at_word_laces(self):
        while True:
            letter_blocks = self.interface.request_letter_blocks()
            if 'stop_session' in letter_blocks:
                break
            word_candidates = self.generate_letter_combos(letter_blocks)
            words = self.find_if_combo_is_word(word_candidates)
            self.interface.print_words(words)

    def generate_letter_combos(self, letter_blocks):
        word_candidates = []
        word_len = 1
        while word_len <= len(letter_blocks):
            word_candidates += [''.join(x) for x in permutations(letter_blocks, r=word_len)]
            word_len += 1
        return set(word_candidates)

    def find_if_combo_is_word(self, word_candidates):
        return sorted(set(self.words) & word_candidates, key=lambda x: len(x))

class LaceWordsInterface:

    @staticmethod
    def request_letter_blocks():
        letter_blocks = input('Enter all letter blocks separated by a space: ')
        return [block.lower() for block in letter_blocks.split()]

    @staticmethod
    def print_words(words):
        print('\n'.join(words))


if __name__ == '__main__':
    LaceWords().cheat_at_word_laces()