TypeError: cannot use a string pattern on a bytes-like object解决方法

因为Python2转Python3的原因,《机器学习实战》第4章的

emailText = open('email/ham/6.txt').read()
需要改为

emailText = open('email/ham/6.txt','rb').read()
但之后调用

listOfTokens = regEx.split(emailText)

会出现

TypeError: cannot use a string pattern on a bytes-like object
上网搜索后发现可以用下面方式解决:

emailText = emailText.decode('GBK')
或直接

emailText = open('email/ham/6.txt','rb').read().decode('GBK')

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