On Tue, 7 Jun 2022 at 10:26, Steven D'Aprano <st...@pearwood.info> wrote: > > Why don't you use the version from the itertools recipes? > > > ``` > from itertools import tee, filterfalse > def partition(pred, iterable): > "Use a predicate to partition entries into false entries and true entries" > # partition(is_odd, range(10)) --> 0 2 4 6 8 and 1 3 5 7 9 > t1, t2 = tee(iterable) > return filterfalse(pred, t1), filter(pred, t2) > ``` > >
Calls the predicate twice for every element, so it's only good for a guaranteed-deterministic predicate. You may want to read the thread before responding. ChrisA _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/NS6ORDJ4STDGOJID5B5NQXZ4MVC5QORQ/ Code of Conduct: http://python.org/psf/codeofconduct/
