On 22/04/20 3:15 am, Chris Angelico wrote:
Currently, it retains any value that was already in it - so if the shortest iterable is a generator, then its return value will be in the propagated StopIteration. Not sure if that's a guarantee and therefore covered by backward compatibility.
I don't this should be a guarantee, in this or any similar situation. The only purpose for the value in a StopIteration is to provide a return value for yield-from when the thing being delegated to is a generator. If you're yielding from something that's not a generator, and not specifically designed to mimic one, then all bets are off. -- Greg _______________________________________________ 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/JE3R6CWLIZ6RE5L4DQAYGDQIT5AQAWNS/ Code of Conduct: http://python.org/psf/codeofconduct/
