Can you show a run-able example of the successful and unsuccessful usage of `with DAG(): ... `?
On Fri, Apr 29, 2022, 6:31 AM Malthe <mbo...@gmail.com> wrote: > Pablo Galindo Salgado wrote: > > As it has been mentioned there is no guarantee that your variable will > even > > be finalized (or even destroyed) after the frame finishes. For example, > if > > your variable goes into a reference cycle for whatever reason it may not > be > > cleared until a GC run happens (and in some situations it may not even be > > cleared at any point). > > I think there is a reasonable guarantee in CPython that it will happen > exactly when you leave the frame, assuming there are no cycles or other > references to the object. There's always the future, but I don't see a very > near future where this will change fundamentally. > > Relying too much on CPython's behavior is a bad thing, but I think there > are cases where it makes sense and can be a pragmatic choice. Certainly > lots of programs have successfully relied on `sys._getframe` over the years. > _______________________________________________ > 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/BVO7RMMZ2LJFEG4GRNNTYZU3Q4P3DHV3/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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