Python 2.7 binascii.unhexlify的奇数长度字符串错误

我正在尝试将ASCII字符串来回转换为其二进制表示形式，如下所示

s=chr(0)*15 + chr(0x01)
bst = bin(int(binascii.hexlify(s), 16))
n = int(bst, 2)
binascii.unhexlify('%x' % n) 

然而，我在最后得到了以下错误，这对我来说没有多大意义

1 binascii.unexlify（“%x”%n）

TypeError:奇数长度字符串

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问题是什么？我如何解决它？

使用python控制台：

>>> help(binascii.unhexlify)

unhexlify(...)
    a2b_hex(hexstr) -> s; Binary data of hexadecimal representation.

    hexstr must contain an even number of hex digits (upper or lower case).
    This function is also available as "unhexlify()"

所以误差是一致的。您需要做的是用

'0'

填充一个偶数：

>>> binascii.unhexlify('0%x' % n)
'\x01'

                n = int(wer, 2)

                qqwslenf=len(wer)
                qqwslenf=(qqwslenf/8)*2
                qqwslenf=str(qqwslenf)
                qqwslenf="%0"+qqwslenf+"x"


                jlz=binascii.unhexlify(qqwslenf % n)
                #we convert from binary to ASCII exactly size of need by half bytes.