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python strings

Is it possible for python strings to contain a zero byte?

May 3 '06 #1
4 1202
On 2006-05-03, mi******@gmail.com <mi******@gmail.com> wrote:
Is it possible for python strings to contain a zero byte?


Yes.

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May 3 '06 #2
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

mi******@gmail.com wrote:
Is it possible for python strings to contain a zero byte?


Yes. Here's how to produce one:

gerhard@lara:~$ python
Python 2.4.2 (#2, Sep 30 2005, 21:19:01)
[GCC 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu8)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
s = "\x000"
s[0] == chr(0) True


- -- Gerhard
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org

iD8DBQFEWQjRdIO4ozGCH14RAsf4AJ4xdbT/FQTSzfciijgVBEfMyTH8SQCeJP39
xzJxWxlAnRgKimsKSKWhSQ0=
=Dd3B
-----END PGP SIGNATURE-----
May 3 '06 #3
Gerhard Häring wrote:
Python 2.4.2 (#2, Sep 30 2005, 21:19:01)
[GCC 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu8)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
s = "\x000"
s[0] == chr(0) True

- -- Gerhard


this works too :)
s = '\x001'
s[0] == chr(0) True s = '\x00abc'
s[0] == chr(0) True
i think it would be more clear not to use 3 digits for this example since \x
only uses the next two numbers, not 3.
s = '\x00'
s[0] == chr(0)

True
bryan

May 4 '06 #4
Bryan <be****@gmail.com> wrote:
s = '\x00'
s[0] == chr(0)True


That's a little excessive when:
s = '\0'
s[0] == chr(0) True

Oh, and to reassure the OP that that null really is *in* the string:
len(s)

1

--
\S -- si***@chiark.greenend.org.uk -- http://www.chaos.org.uk/~sion/
___ | "Frankly I have no feelings towards penguins one way or the other"
\X/ | -- Arthur C. Clarke
her nu becomeþ se bera eadward ofdun hlæddre heafdes bæce bump bump bump
May 4 '06 #5

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