New submission from Peter Würtz <pwue...@gmail.com>: Itertools `tee` does not seem to de-reference yielded items, even after consumption of all items from all tee-iterators.
According to the documentation (to my understanding), there shouldn't be any extra memory requirement as long as the tee-iterators are consumed in a balanced way. I.e. after an item was pulled from all iterators there shouldn't be any residual reference to it. This is true for the example-implementation mentioned in the documentation, but `itertools.tee` doesn't de-reference items until the tee-iterator itself is deleted: https://pastebin.com/r3JUkH41 Is this a bug or am I missing something? ---------- components: Library (Lib) messages: 364849 nosy: pwuertz priority: normal severity: normal status: open title: itertools.tee does not release resources during iteration? type: resource usage versions: Python 3.7 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue40047> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
