Create Universal Unique Identifier (UUID) in Python

Most of the time when I write database related programs, I often think about how to create a good id because one of the good id characteristic is meaningless. It should has no meaning, to doesn't let anyone understand something behind this id.

In Python, we can easily create it by using uuid module that is included in Python standard library as following example:

import uuid
ob = uuid.uuid4()
print str(ob)

There are 4 kinds of uuids in Python: uuid1(), uuid3(), uuid4(), and uuid5() that you can take a look for more details at http://docs.python.org/library/uuid.html.