python, from json object (hex) to raw internal binary string

Question

in python how can i convert a "json-loaded" object value into raw binary string? ie "0A" to be converted to "1010"?

what i do is the following: read a line from a file, ie assume the file contains this line:

{"hex":"0A01145af1ab"}

i read it with then i load it with json library //ok so far

data = json.loads(a_line)

then i can use data["hex"],

but i need ie. "0A" to be converted to "1010", and i don't know how to do that i read this topic which is similar to my problem, but it didn't help me (base64.b16decode(data["hex"]) returns error)

thanks a lot!

bin(int(data['hex'][:2], 16))

JBernardo
– JBernardo

2012-05-25 16:23:46 +00:00
Commented May 25, 2012 at 16:23 — JBernardo
– JBernardo, Commented May 25, 2012 at 16:23
@JBernardo -- you get the win.

parselmouth
– parselmouth

2012-05-25 16:24:14 +00:00
Commented May 25, 2012 at 16:24 — parselmouth
– parselmouth, Commented May 25, 2012 at 16:24

JBernardo · Accepted Answer · 2012-05-25 16:25:20Z

2

>>> bin(int(data['hex'][:2], 16))[2:]
'1010'

also format(..., 'b') to conver to binary (without the 0b prefix)

answered May 25, 2012 at 16:25

JBernardo

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