We can already easily simulate your first alternative in a generator
comprehension:
(x for it in its for x in it)
# equivalent to
def gen(its):
for it in its:
for x in it:
yield x
so anyone who wants that behaviour can easily get it. So unpacking in a
comprehension should provide the second alternative:
(*it for it in its)
# equivalent to
def gen(its):
for it in its:
yield from it
As you say, the difference is subtle, and usually not important, so most
people will not care and will use whatever is easier to type :-)
(I think the difference has to do with sending values into the
generator, throwing and catching exceptions, but I can't think of a
simple example where it would make a difference.)
--
Steve
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