base64 hiccup

[kjm1102]

When I base64 encode b'0067462314' I get 'MDA2NzQ2MjMxNA==' but a web encoder (also claiming to be base 64) gives 'AgdGIxQ='. I can't work out how to get this in upython or python. Can someone please point me in the right direction?

[GitHubsSilverBullet]

~$ python3
Python 3.9.2 (default, Feb 28 2021, 17:03:44) 
[GCC 10.2.1 20210110] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import base64
>>> base64.b64encode( b'0067462314' )
b'MDA2NzQ2MjMxNA=='
>>> 
~$ python2
Python 2.7.18 (default, Jul 14 2021, 08:11:37) 
[GCC 10.2.1 20210110] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import base64
>>> base64.b64encode( b'0067462314' )
'MDA2NzQ2MjMxNA=='
>>> 
~$ 

I'd say you have to ask THEM how the produce that result.

You could also try: ;-)

N = bytes((0x00, 0x67, 0x46, 0x23, 0x14))
>>> base64.b64encode(N)
b'AGdGIxQ='

[GitHubsSilverBullet]

Converting your original value forward and backward can be done in a single line.
Instead of chatting with a toy, I'd strongly suggest to read the documentation (both Python and MicroPython)
https://docs.python.org/3.5/
https://docs.micropython.org/en/latest/

>>> from binascii import a2b_base64, b2a_base64, hexlify, unhexlify
>>> original = b'0067462314' 
>>> result1 = b2a_base64(unhexlify(original))
>>> result1
b'AGdGIxQ=\n'
>>> result2 = hexlify(a2b_base64(result1))
>>> result2
b'0067462314'
>>> result2 == original
True

[robert-hh]

Are you doing a chat GPT impersonation Rob?

I usually try before posting. The hex() method for a bytes object exist e.g. on Python 3, and every board I tried. I do not know which platform you tried:

MicroPython v1.20.0-219-g47dc7d013-dirty on 2023-06-17; Raspberry Pi Pico with RP2040
Type "help()" for more information.
>>> b'\x00gF#\x14'.hex()
'0067462314'

[kjm1102]

Ah tnx GHSB, that's what I couldn't figure out using my brain , how to swap backwards & forwards between the 2 representations, hence the desperate recourse to the AI after 2 hours of frustration.

Looks like I need to do a version upgrade if I want to use the elusive .hex() Rob

import os; os.uname(); b'\x00gF#\x14'.hex()
(sysname='rp2', nodename='rp2', release='1.17.0', version='v1.0-pico-deepsleep-1-gaec7edbfc-dirty on 2021-11-06 (GNU 9.2.1 MinSizeRel)', machine='Raspberry Pi Pico (sleep) with RP2040')
Traceback (most recent call last):
File "", line 1, in
AttributeError: 'bytes' object has no attribute 'hex'

[jimmo]

bytes.hex() was added not long after v1.19 was released, and included in v1.20.

You are using v1.17 is nearly two years old now (!!!)

[kjm1102]

Yeah I know Jim. Thing is a guy fixed the pico deepsleep enough to be usable for me in v17 so I'm sort of stuck with it. It's a tough life for those of us not smart enough to do our own upython repairs.

[GitHubsSilverBullet]

Meanwhile chat GPT is telling me otherwise

That's why it's called an AS system. (Artificial Stupidity)
Often it's wrong. Often it blatantly lies.
Takes more time to verify the questionable results it spews out, than to think about one's own solution. (Used to be called: learning)

Every once in a while it's OK to use one's own brain…