Hello guest, if you read this it means you are not registered. Click here to register in a few simple steps, you will enjoy all features of our Forum.
Bottom Page

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

I would like to assign hex values to a byte array, however for some values python assign letters to the array instead hex values.

For example:
length = bytes(3)
barray = bytearray(length)

# construct example array
barray[0] = 0xd0
barray[1] = 0x13
barray[2] = 0x74

It outputs:
But I would like to have:
Where is the problem?

Best regards,
No problem - HEX values that correspond to ASCII characters are shown like those characters
In [7]: chr(0x74) Out[7]: 't'

I would have used array to build bytestring - initializing values one-by-one does not look very Pythonic
In [12]: import array In [13]: array.array('B', (0xd0, 0x13, 0x74)).tobytes() Out[13]: b'\xd0\x13t'
Test everything in your favorite Python shell
  • Someone gave you an advice you liked? Test it - maybe the advice was actually bad.
  • Someone gave you an advice you think is bad? Test it before arguing - maybe it was good.
  • You posted a claim that something you did not test works? Be prepared to eat your hat.
Try the following construction:
for x in barray:
To paraphrase: 'Throw out your dead' code. https://www.youtube.com/watch?v=grbSQ6O6kbs Forward to 1:00
I guess there is no one right way how you can solve this task.

You can work with binascii.hexlify
from binascii import hexlify

ba = bytearray(b'\xd0\x13t')
hexstr = hexlify(ba).decode() # hexlify returns bytes
Another method could be str-formatting:
ba = bytearray(b'\xd0\x13t')
hexstr = ''.join(format(integer, 'x') for integer in ba) 
For Python 3.6 fans with format string interpolation:
ba = bytearray(b'\xd0\x13t')
hexstr = ''.join(f'{integer:x}' for integer in ba) 
My code examples are always for Python 3.x.
All humans together. We don't need politicians!

Top Page

Possibly Related Threads...
Thread Author Replies Views Last Post
  4 byte hex byte swap from binary file medievil 7 179 May-08-2018, 08:16 AM
Last Post: killerrex
  python charmap codec can't decode byte X in position Y character maps to < undefined> owais 9 7,107 Apr-28-2018, 10:52 PM
Last Post: abadawi
  I have an array, how can I search a seperate file for the contents of my array? Mr_Keystrokes 0 120 Mar-13-2018, 02:25 PM
Last Post: Mr_Keystrokes
  get the content of the byte as string ricardons 5 191 Mar-02-2018, 02:41 PM
Last Post: ricardons
  converting array of things to byte stream to send bigjoey 2 141 Feb-27-2018, 12:56 PM
Last Post: bigjoey
  byte string Skaperen 5 301 Feb-04-2018, 08:58 AM
Last Post: Gribouillis
  byte string in python2 Skaperen 4 433 Nov-23-2017, 03:13 AM
Last Post: Skaperen
  Convert list of integers to bit-mapped byte eccles 10 812 Oct-25-2017, 07:35 PM
Last Post: eccles
  typeerror:byte like object is required rajeev1729 1 515 Sep-15-2017, 06:23 PM
Last Post: nilamo
  error in script "Expected 2D array, got 1D array instead:" drogontargaryen 0 5,374 Aug-07-2017, 04:32 PM
Last Post: drogontargaryen

Forum Jump:

Users browsing this thread: 1 Guest(s)