Christian Heimes <li...@cheimes.de> added the comment:
We use os.urandom() because it is backed by a cryptographicly secure random number generator. The random module uses a non-secure RNG. While RFC 4122 does not mandate a CSRPNG, application often rely on unpredictable UUIDs. Correctness and security is more important here than performance. If you need a faster uuid4 implementation, then you can role your own with a couple of lines of code: import random from uuid import UUID def uuid4_fast(): return UUID(int=random.getrandbits(128), version=4) ---------- nosy: +christian.heimes resolution: -> rejected stage: patch review -> resolved status: open -> closed _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue45556> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com