Ethan Furman added the comment:
Short History:
=============
(Ram Rachum)
What do you think about adding a method: `Executor.filter`?
I was using something like this:
my_things = [thing for thing in things if some_condition(thing)]
But the problem was that `some_condition` took a long time to run waiting on
I/O, which is a great candidate for parallelizing with ThreadPoolExecutor. I
made it work using `Executor.map` and some improvizing, but it would be nicer
if I could do:
with concurrent.futures.ThreadPoolExecutor(100) as executor:
my_things = executor.filter(some_condition, things)
And have the condition run in parallel on all the threads.
(Nick Coughlan)
I think this is sufficiently tricky to get right that it's worth adding
filter() as a parallel to the existing map() API.
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue24195>
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