On Sun, May 12, 2019 at 12:43 PM David Mertz <[email protected]> wrote:
>
> Terry reminds me of a common case I encounter that cannot be transformed into
> a loop over itertools.product(). E.g.
>
> for main in stuff:
> if thing_about(main):
> for detail in more_stuff(stuff, main):
> if seen_enough(detail):
> # break to outer somehow
> else:
> for detail in different_stuff():
> if seen_enough(detail):
> # break to outer somehow
>
For that kind of loop, there's a different problem, which is the
duplication. So I would start by rewriting that as:
for main in stuff:
if thing_about(main):
details = more_stuff(stuff, main)
else:
details = different_stuff()
for detail in details:
if seen_enough(detail):
...
I'm not sure what you mean by "break to outer somehow", though, so I
don't know what you're actually needing here. Concrete examples would
help.
ChrisA
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