User/browser fingerprinting without cookies

I'm sure that many of you have heard about this: http://panopticlick.eff.org/

It's a way to form a somewhat unique fingerprint of a web site visitor based on information about their b开发者_运维百科rowser, fonts, plugins, etc...

Does anyone know of a library (python!?) to do this?

I'd like to allow for visitors to vote on a poll without having to have an account...

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You could get jQuery to send that data to your server, and garner the rest on receipt of that request from HTTP headers.

Create a checksum, bish-bash-bosh done.

warning as much of that information is JS provided (this also applies to the user agent) it is very easily manipulated. If you have a single hash, I only have to change one small value (like browser version) to get a new vote.

Sounds dangerous ... why not just use logins like everyone else, it's easy with OpenID nowadays.