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Đối tượng TypeError: 'dict_keys' không hỗ trợ lập chỉ mục
def shuffle(self, x, random=None, int=int): """x, random=random.random -> shuffle list x in place; return None. Optional arg random is a 0-argument function returning a random float in [0.0, 1.0); by default, the standard random.random. """ randbelow = self._randbelow for i in reversed(range(1, len(x))): # pick an element in x[:i+1] with …