Is python uuid1 sequential as timestamps?

Question

Python docs states that uuid1 uses current time to form the uuid value. But I could not find a reference that ensures UUID1 is sequential.

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Answer 1

From the python UUID docs:

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.

From this, I infer that the MAC address is first, then a (possibly random) sequence number, then the current time. So I would not expect these to be guaranteed to be monotonically increasing, even for UUIDs generated by the same machine/process.