Issue 33545: Docs for uuid don't mention that uuid1 can repeat in some circumstances (original) (raw)
https://docs.python.org/3.6/library/uuid.html#uuid.UUID
uuid.uuid1(node=None, clock_seq=None)
Generate a UUID from a host ID, sequence number, and the current time. If node is not given, getnode() is used to obtain the hardware address. If clock_seq is given, it is used as the sequence number; otherwise a random 14-bit sequence number is chosen.
^^
This neglects to mention that if you call uuid1() in quick succession with no parameters, you can get a repeat uuid.
I had a bug because of this.
It would have been nice if the docs mentioned the fact directly.
It's only a sentence to add, and would have saved a lot of time.