How to put special character between string

Question

I have a string like "0013A200305EFF96". I want to change it to be in form "\x00\x13\xA2\x00\x30\x5E\xFF\x96". The special character is "\x". How can I do this in a time efficient way?

score 6 · Accepted Answer · answered May 20 '13 at 08:43

6

Python2

>>> "0013A200305EFF96".decode("hex")
'\x00\x13\xa2\x000^\xff\x96'

Python3

>>> bytes.fromhex("0013A200305EFF96")
b'\x00\x13\xa2\x000^\xff\x96'

answered May 20 '13 at 08:43

John La Rooy

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what is this ^in results – user2401013 May 20 '13 at 08:45
You want to escape the printable characters too? – John La Rooy May 20 '13 at 08:46
result should be also in form of string – user2401013 May 20 '13 at 08:47
So the \ are literal? – John La Rooy May 20 '13 at 08:50

score 1 · Answer 2 · answered May 20 '13 at 08:46

1

gnibbler's answer is probably what you are really looking for; but for completeness, here is how you can insert any sequence:

>>> '\\x'.join(a[i:i+2] for i in xrange(0, len(a), 2))

answered May 20 '13 at 08:46

Jakub M.

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can I change the results in form of hex value if I want namely results will be '\x00\x13\xA2\x00\x30\x5E\xFF\x96' – user2401013 May 20 '13 at 08:51

score 1 · Answer 3 · answered May 20 '13 at 08:49

1

If you mean literal \x:

import re
s= "0013A200305EFF96"
s=re.sub("(..)", r"\x\1",s)
print s

Output

\x00\x13\xA2\x00\x30\x5E\xFF\x96

answered May 20 '13 at 08:49

perreal

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Can I ask one question, If I have "\x12" as a string, how can I convert it to be hex value, its type, and value is '\x12' ? – user2401013 May 20 '13 at 08:58

How to put special character between string

3 Answers3

Python2

Python3