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.decode()

上述代码，报错：

‘str’ object has no attribute ‘decode’

查找原因：

https://stackoverflow.com/questions/29030725/str-object-has-no-attribute-decode

You cannot decode string objects; they arealreadydecoded. You’ll have to use a different method.

You can use thecodecs.decode()functionto applyhexas a codec:

>>>>

This applies aBinary transformcodec; it is the equivalent of using thebase64.b16decode()function,with the input string converted to uppercase:

>>>>

You can also use thebinascii.unhexlify()functionto ‘decode’ a sequence of hex digits to bytes:

>>>>

Either way,you’ll get abytesobject.

使用第二种方式解决了:

>>> >>> base64.b16decode()