Say I’ve got two or more lists I’d like to map a task over. If I provide two mappable arguments to

Task.map()

it iterates through both of them together like

zip()

. Is there a way to loop over every combination instead, like

itertools.product()

?

You need a task to make that cross-product

so an un-mapped task taking both lists, that returns something like a list of tuples? And then I can map my other task over that?

Yes exactly. Try returning a tuple of lists and then use this syntax

a, b = product()
other_task.map(a, b)

doesn’t that just put me back where I started?

I mean the

a

and

b

here will be expanded lists already like

a=[1,1,1,2,2,2,3,3,3]

,

b=["a","b",""c","a","b",""c","a","b",""c"]

. I dunno I might just be confusing you 😅. I think you understand it already

Ah, gotcha. Yes I guess that’d do it!

Yeah exactly!