Re: [Python-Dev] Tricky way of of creating a generator via a comprehension expression

2017年11月25日 15:48:48 -0800

Serhiy Storchaka wrote:
Ivan explained that this function should be rough equivalent to
 def f():
 t = [(yield i) for i in range(3)]
 return (x for x in t)
This is a *rough* equivalent. There are differences in details.
The details would seem to be overwhelmingly important, though.
I take it you're saying the semantics should be "like the
above except that the returned iterator is lazy". But that
seems impossible, because f() can't return anything until it
finishes having all its values sent to it.
--
Greg
_______________________________________________
Python-Dev mailing list
[email protected]
https://mail.python.org/mailman/listinfo/python-dev
Unsubscribe: 
https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com

Reply via email to