Platform-independent GUID creation?

[Aahz Maruch]

In article <9jeo3u851a4vo89f2lbpkhfduuipndsjk6 at 4ax.com>,
Toby Dickenson  <tdickenson at geminidataloggers.com> wrote:
>"Irmen de Jong" <usenet at NOSPAM-irmen.cjb.net> wrote:
>>
>>I don't have a better solution. If anybody has a better (Pythonic) GUID
>>generator, I'd be very interested.
>
>On machines that have it, /dev/urandom may well be unique enough.

This fails across multiple machines.
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