Python UUID

Python uuid generates unique id.
uuid1 and uuid4 generates random id. uuid3 and uuid 5 generate a UUID based on the SHA-1 hash of a namespace identifier (UUID) and a name (string).

All source code available on github

import uuid

print uuid.uuid1()
print "[Hex]",uuid.uuid1().hex
print uuid.uuid4()
print "[Hex]",uuid.uuid4().hex
print uuid.uuid3(uuid.NAMESPACE_DNS, 'python.org')
print "[Hex]",uuid.uuid3(uuid.NAMESPACE_DNS, 'python.org').hex
print uuid.uuid5(uuid.NAMESPACE_DNS, 'python.org')
print "[Hex]",uuid.uuid5(uuid.NAMESPACE_DNS, 'python.org').hex

Output:

9bfb379e-62ae-11e2-81fb-4c809312d053
[Hex] 9bfc702162ae11e2a2504c809312d053
cf0be0b2-8eed-4b87-8b42-03679d8c1c94
[Hex] dd3162cb5e454dc3976a1769ef604742
6fa459ea-ee8a-3ca4-894e-db77e160355e
[Hex] 6fa459eaee8a3ca4894edb77e160355e
886313e1-3b8a-5372-9b90-0c9aee199e5d
[Hex] 886313e13b8a53729b900c9aee199e5d