[Python-Dev] UUID module

Ka-Ping Yee python-dev at zesty.ca
Mon Jun 12 02:24:53 CEST 2006

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


Okay, that's in there now.  Have a look at http://zesty.ca/python/uuid.py .

Phillip J. Eby wrote:
> By the way, I'd love to see a uuid.uuid() constructor that simply calls the
> platform-specific default UUID constructor (CoCreateGuid or uuidgen(2)),

I've added code to make uuid1() use uuid_generate_time() if available
and uuid4() use uuid_generate_random() if available.  These functions
are provided on Mac OS X (in libc) and on Linux (in libuuid).  Does
that work for you?

I'm using the Windows UUID generation calls (UuidCreate and
UuidCreateSequential in rpcrt4) only to get the hardware address,
not to make UUIDs, because they yield results that aren't compliant
with RFC 4122.  Even worse, they actually have the variant bits set
to say that they are RFC 4122, but they can have an illegal version
number.  If there are better alternatives on Windows, i'm happy to
use them.

-- ?!ng

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