How to generate unique 64 bits integers from Python?

Question

I need to generate unique 64 bits integers from Python. I\'ve checked out the UUID module. But the UUID it generates are 128 bits integers. So that wouldn\'t work.

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Answer 1

You can use uuid4() which generates a single random 128-bit integer UUID. We have to 'binary right shift' (>>) each 128-bit integer generated by 64-bit (i.e. 128 - (128 - 64)).

from uuid import uuid4

bit_size = 64
sized_unique_id = uuid4().int >> bit_size
print(sized_unique_id)