I want to generate a list of the hex values of all 256 byte-combinations.
Basically, I want for example 'A' => '\x41'. I've only found modules capable of converting 'A' => '41', and this is not what I want.
How am I to solve this problem? Does anybody know an appropriate module or algorithm (as I'd like to avoid hardcoding 256 hexvalues...)?
>>> hex(ord('A'))
'0x41'
Is that the kind of thing you want?
Maybe something like this?
for o in range(128):
print chr(o), hex(o)
Or maybe
import string
for c in string.printable:
print c, hex(ord(c))
ord('A') returns the ASCII value as an integer (65 in the case of 'A'). You can think of an integer in any base you want. hex(ord('A')) gives you a nice string ("0x41" in this case), as does print "%x" % ord('A').
Are you trying to print b'\x00' all the way to b'\xff'? If so then my assumption is that the best answer should contain a range of 256
for o in range(256):
print(hex(o))
To get the numeric value of each ASCII upper and lower case letter as a list:
from string import ascii_letters
[ord(c) for c in ascii_letters]
so, you found the way of doing for one char, lets just do it for all of them in a loop or list comprehension.
[(chr(x), '%x' % x) for x in range(256)]
this will create a list with (char, string with value in hex). if you want the value display in some other way you can play around with the format string like
>>> 'x%02x' % ord('\r')
'x0d'
'\x41'is equivalent to'A'(try it). Or do you want the string literalr'\x41'?