CODEWITHSUNDEEP
python
harper
harper

Reputation: 13690

Readable hex dump of bytes

I want to convert a list of bytes as a string of hex values. The list of bytes is a bit long, so I want spaces between the bytes to improve readability. The function hexlify as well as hex does the job:

import binascii
a = [1,2,3,4]
s = binascii.hexlify(bytearray(a))
print s
s = bytes(a).hex()
print s

But the result is '01020304'. I want a dump with a space between the bytes like '01 02 03 04'. How can I do this in an efficient way?

Edit: There is also a way to iterate all bytes. Would this be efficient?

s = ' '.join('%02x' % i for i in a)

Upvotes: 0

Views: 3350

Answers (2)

snakecharmerb
snakecharmerb

Reputation: 55589

You can use bytes.hex with a separator string:

>>> bs = b'Hello world'
>>> bs.hex(sep=' ')
'48 65 6c 6c 6f 20 77 6f 72 6c 64'

Upvotes: 3

Gabriele Asaro
Gabriele Asaro

Reputation: 11

You can iterate the result

import binascii
a = [1,2,3,4]
s = binascii.hexlify(bytearray(a))
s = bytes(a).hex()
iterate = iter(s)
print ' '.join(a+b for a,b in zip(iterate, iterate))

Upvotes: 1

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