Print python os.urandom output on terminal

Question

how can i print the output of os.urandom(n) in terminal?

I try to generate a SECRET_KEY with fabfile and will output the 24 bytes.

Example how i implement both variants in the python shell:

>>> import os
>>> out = os.urandom(24)
>>> out
'oS\xf8\xf4\xe2\xc8\xda\xe3\x7f\xc75*\x83\xb1\x06\x8c\x85\xa4\xa7piE\xd6I'
>>> print out
oS�������5*������piE�I

Answer 1

If what you want is hex-encoded string, use binascii.a2b_hex (or hexlify):

>>> out = 'oS\xf8\xf4\xe2\xc8\xda\xe3\x7f\xc75*\x83\xb1\x06\x8c\x85\xa4\xa7piE\xd6I'
>>> import binascii
>>> print binascii.hexlify(out)
6f53f8f4e2c8dae37fc7352a83b1068c85a4a7706945d649

Answer 2

To use just built-ins, you can get the integer value with ord and then convert that back to a hex number:

list_of_hex = [str(hex(ord(z)))[2:] for z in out]
print " ".join(list_of_hex)

If you just want the hex list, then the str() and [2:] are unnecessary

The output of this and the hexify() version are both type str and should work fine for the web app.