How to print binary file as bytes?

Question

I did

>>> b0 = open('file','rb')

Then

>>> b0.read(10)

gives

b'\xb8\xaaK\x1e^J)\xab_I'

How can I get things printed all as pure hex bytes? I want

b'\xb8\xaa\x4b\x1e\x5e\x4a\x29\xab\x5f\x49'

(PS: is it possible to print it pretty? like

B8 AA 4B 1E 5E 4A 29 AB 5F 49

or colon separated.)

@Allendar - no, in pyhon3 that doesn't work. binascii.hexlify — mata
– mata, Commented Apr 12, 2013 at 6:53

NPE · Accepted Answer · 2013-04-12 07:15:26Z

6

>>> s = b'\xb8\xaaK\x1e^J)\xab_I'
>>> ' '.join('{:02X}'.format(c) for c in s)
'B8 AA 4B 1E 5E 4A 29 AB 5F 49'

or, slightly more concisely:

>>> ' '.join(map('{:02X}'.format, s))
'B8 AA 4B 1E 5E 4A 29 AB 5F 49'

answered Apr 12, 2013 at 7:03

NPE

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2 Comments

I found this in another answer. It's kind of indirect. Is there a way to set some environment variable so that bytes are printed as is?

And 0's are printed as 0, not 00, e.g. I got something like 1 0 F2 5 2A 1 0 0 0 43 41 4 96, which is not so good.