[Python-ideas] Re: Unpacking in tuple/list/set/dict comprehensions

16.10.21 17:07, Erik Demaine пише:

(*it for it in its)  # tuple with the concatenation of iterables in 'its'

As others already have said, it should evaluate to a generator, not to a tuple. But other question is occurred now. Should it be equivalent to def gen(its): for it in its: for x in it: yield x or to def gen(its): for it in its: yield from it ? There is a subtle difference between these codes.