如何将字节列表从十进制更改为十六进制？

Question

basically, I have a list of bytes, and I want to convert that to ASCII text

so I converted that list into a single bytearray (I apologize if that's the wrong term), to then be able to convert it into ASCII text

but since that list has the values seen as decimal, I have issues to convert it to text, since i would need them to be in hex. (obs: the values are in hex, they are just not represented as it)

ok, so this is the initial list:

text_bytes_list = [b'74', b'68', b'69', b'73', b'20', b'69', b'73', b'20', b'61', b'20', b'74', b'65', b'73', b'74']

and I did this to get it all in a single byte:

text_byte = b''.join(text_byte_list)
print(text_byte)

the output is: b'7468697320697320612074657374'

so what I wanted was a way to turn this:

text_bytes_list = [b'74', b'68', b'69', b'73', b'20', b'69', b'73', b'20', b'61', b'20', b'74', b'65', b'73', b'74']

into this:

text_bytes_list = [b'0x74', b'0x68', b'0x69', b'0x73', b'0x20', b'0x69', b'0x73', b'0x20', b'0x61', b'0x20', b'0x74', b'0x65', b'0x73', b'0x74']

so when I joined the list, using the same process I would get:

text_byte = b''.join(text_byte_list)
print(text_byte)

output: b'\x74\x68\x69\x73\x20\x69\x73\x20\x61\x20\x74\x65\x73\x74'

with that value I can convert it into text (my objective here), doing this:

text_byte = b'\x74\x68\x69\x73\x20\x69\x73\x20\x61\x20\x74\x65\x73\x74'
print(text_byte.decode("ascii"))

the output should be: this is a test

sorry, the post got a little big, but I appreciate any help I can get, pls help:)

Answer 1

Just convert them to integers, and then into a "bytes" string.

>>> text_bytes_list = [b'74', b'68', b'69', b'73', b'20', b'69', b'73', b'20', b'61', b'20', b'74', b'65', b'73', b'74']
>>> tbl = [int(t,16) for t in text_bytes_list]
>>> tbl
[116, 104, 105, 115, 32, 105, 115, 32, 97, 32, 116, 101, 115, 116]
>>> bytes(tbl)
b'this is a test'
>>>