[Python-Dev] UUID module

[Thomas Heller]

Phillip J. Eby wrote:
> At 08:22 AM 6/10/2006 -0500, Ka-Ping Yee wrote:
>>Finally, Phillip brought up PEAK:
>> > PEAK's uuid module does this such that if win32all is present,
>> > you get a Windows GUID, or if you have a FreeBSD 5+ or
>> > NetBSD 2+ kernel you use the local platform uuidgen API.  See e.g.:
>>
>>...so i looked at PEAK's getnodeid48() routine and borrowed the
>>Win32 calls from there, with a comment giving attribution to PEAK.
> 
> There appears to be a transcription error, there; the second win32 import 
> isn't covered by a try/except and the ImportError seems to have disappeared 
> as well.
> 
> Also, for Python 2.5, these imports could probably be replaced with a 
> ctypes call, though I'm not experienced enough w/ctypes to figure out what 
> the call should be.
> 
> Similarly, for the _uuidgen module, you've not included the C source for 
> that module or the setup.py incantations to build it.  But again, it could 
> probably be replaced by ctypes calls to uuidgen(2) on BSD-ish platforms.
> 
> I'll take a whack at addressing these once the code is in, though, unless 
> there's a ctypes guru or two available...?

I don't know if this is the uuidgen you're talking about, but on linux there
is libuuid:

>>> from ctypes import *
>>> lib = CDLL("libuuid.so.1")
>>> uuid = create_string_buffer(16)
>>> lib.uuid_generate(byref(uuid))
2131088494
>>> from binascii import hexlify
>>> hexlify(buffer(uuid))
'0c77b6d7e5f940b18e29a749057f6ed4'
>>>