I'll lend a supportive voice here: I like the proposal and would probably
make use of this kind of syntax quite a bit, but I think the requirement of
yield is definitely a necessity. Too much ambiguity without it.
And adding the yield, IMO, doesn't clutter things up too badly. Using one
of the code examples, it looks pretty good to me:
[
for row in matrix:
[
for cell in row:
yield f(cell)
]
]
Of course, anything that does not contain a yield statement would need to
be a syntax error or it could cause problems when refactoring from
"regular" looping code, and forgetting to add the yield.
---
Ricky.
"I've never met a Kentucky man who wasn't either thinking about going home
or actually going home." - Happy Chandler
On Fri, Feb 21, 2020 at 3:40 PM Alex Hall <alex.moj...@gmail.com> wrote:
> OK, I think the verdict is in and I will not try to debate it.
>
> > Does opening a [{( and having any : statements inside
> > just imply one more indentation level? Or can the statements inside
> > be validly less indented than the line containing the = [...
> > opening bracket?
>
> I think this is a fun question. I can't think of any good reason to allow
> indenting less than the containing statement, but I'm also wondering if
> there's edge cases I might be missing. If not, then maybe we can indeed
> just require adding another indentation level. And maybe that means that
> statements inside expressions wouldn't require a Rube Goldberg machine ;)
>
> If anyone is curious, I initially wrote [a much larger proposal with
> several overlapping subproposals in which `if`, `try`, and `def` could all
> be used as expressions](
> https://www.reddit.com/r/Python/comments/f5wm1d/proposal_compound_statement_expressions_complex/).
> I figured that was hopelessly ambitious and just submitted the part I liked
> best.
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