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Я пытаюсь проанализировать строку шестнадцатеричных значений, чтобы найти комбинацию, которой еще нет. Я пробовал использовать itertools, но не думаю, что использую его правильно. Есть ли лучший способ сделать это?

 code = itertools.product("123456789abcde", repeat=16) for key in code:  print(key)  if str(key) not in codegen:  key1 = key  break  

Пример кода

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 

Когда я запускаю этот код, я просто получаю

 ('1', '1', '1', '1', '1', '1', '1', '1', '1', '1', '1', '1', '1', '1', '1', '1')  

Это заставляет меня думать, что я неправильно выполняю итерацию с помощью itertools.product, что, в свою очередь, неправильно анализирует, так как ключ, который он ищет, всего 1 16 раз. Моя идея состоит в том, чтобы начать с 3-х шестнадцатеричной последовательности и повторить оттуда все комбинации длиной до 16, пока одна комбинация не исчезнет в codegen.