successfully encode hex to bytes, but failed to transform bytes back to string-===>hex ->bytes; and bytes->string

Question

given hex, and formed bytes

looking for bytes to string

def hex_to_b:
    return bytes.fromhex('abc')
#now you have a byte type string
#looking to decode back to the string

#failure of transformation
hex_to_b().decode(encoding="utf-8",errors="strict")

`'abc'` is not a valid hex string. – Aran-Fey Feb 10 '19 at 09:44 — Aran-Fey, Feb 10 '19 at 09:44

score 1 · Answer 1 · answered Feb 10 '19 at 09:57

To convert bytes to hex, and the other way round, use built-in binascii module.

https://docs.python.org/3/library/binascii.html

Example:

>>> from binascii import hexlify, unhexlify
>>> unhexlify('deadbeef')
b'\xde\xad\xbe\xef'
>>> hexlify(b'\xde\xad\xbe\xef').decode()
'deadbeef'

Make sure a valid hex-string is passed.

successfully encode hex to bytes, but failed to transform bytes back to string-===>hex ->bytes; and bytes->string

1 Answers1