On 2017-11-25 02:21, Chris Jerdonek wrote:
On Fri, Nov 24, 2017 at 5:06 PM, Nathaniel Smith <n...@pobox.com> wrote:
On Fri, Nov 24, 2017 at 4:22 PM, Guido van Rossum <gu...@python.org> wrote:
The more I hear about this topic, the more I think that `await`, `yield` and
`yield from` should all be banned from occurring in all comprehensions and
generator expressions. That's not much different from disallowing `return`
or `break`.
I would say that banning `yield` and `yield from` is like banning
`return` and `break`, but banning `await` is like banning function
calls.
I agree. I was going to make the point earlier in the thread that
using "await" can mostly just be thought of as a delayed function
call, but it didn't seem at risk of getting banned until Guido's
comment so I didn't say anything (and there were too many comments
anyways).
I think it's in a different category for that reason. It's much easier
to reason about than, say, "yield" and "yield from".
+1
Seeing "await" there didn't/doesn't confuse me; seeing "yield" or "yield
from" does.
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