Python 将十六进制字符串转换为字节值

Question

I have this string of bytes:

output1 = 'fef00a01'

and I am trying to convert it to bytes:

output2 = b'\xfe\xf0\n\x01'

This does not satisfies the condition:

output1 == output2 # <--- returns False

How can I make it to return True?

Answer 1

outpu1 is a string of characters representing a hex value. Your comparison will always yield false without some sort of conversion (they're two different objects underneath). It's akin to testing '123' == 123 .

Basically, you need to convert that string to bytes before comparing. Use something like binascii to convert the hex string into actual bytes like so:

import binascii

output1 = binascii.unhexlify('fef00a01')

Answer 2

Apparently, it is simple:

>>> bytes.fromhex(output1) 
b'\xfe\xf0\n\x01'