Guido van Rossum wrote: > On Wed, Dec 15, 2021 at 6:57 PM Jim J. Jewett jimjjew...@gmail.com wrote: > > Immortal objects shouldn't be reclaimed by garbage collection, but they > > still count as potential external roots for non-cyclic liveness. > So everything referenced by an immortal object should also be made immortal
Why? As long as you can get a list of all immortal objects (and a traversal function from each), this is just an extra step (annoying, but tolerable) that removes a bunch of objects from the pool of potential garbage before you even begin looking for cycles. > -- even its type. Hence immortal objects must be immutable. This is probably a good idea, since avoiding changes also avoids races and Copy on Write and cache propagation, etc ... but I don't see why it is *needed*, rather than helpful. -jJ _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/4KY5XSHRMP3F3CWAW2OUW4NRXN4AB7EM/ Code of Conduct: http://python.org/psf/codeofconduct/
