你好，我运行你的代码出现了一个错误

[fxjzzyo]

 for line in file:
        line = line.lower().encode('utf-8')
        words = line.split()
        for word in words:
            word = word.translate(None, string.punctuation)
            if word != '':
                allWords.append(word)

这段代码，的word.translate(None, string.punctuation)一句，报TypeError: a bytes-like object is required, not 'str'这个错误。在网上查了下，说可能是py3.5的问题，加上decode后，又报了TypeError: translate() takes exactly one argument (2 given)错误。。。请问，该怎么破？