Heads-up that in pytest. 3.4.0 the .cache directory is being renamed to .pytest_cache, so be sure to cover both names.

Line 114 of scripts.py looks like a plausible place to start.

When scons --clean does the "scons: Cleaning targets ..." step, where does it get its list from? Adding ./.cache to the list of things to remove when cleaning the tests target seems like the ideal solution; modifying CleanTree is not as trivial as I'd hoped.

Jim Bosch This is a possible solution, but I think it'd be better if we could do it as part of the "Cleaning targets" step, as I asked about in the comment above. Suggestions welcome, but I believe this does work as implemented.

Note: I initially accidentally pushed to master, but immediately reverted it.

I suspect we can't do this as part of cleaning targets unless we can predict all of the actual files all of our build targets create, and that isn't worth it.

If it works (I have not tested it), the code is fine.

Thanks for the review. It does delete the pytest cache, but I don't know how to check whether it deletes anything else.

Once we upgrade pytest to >3.4.0, we could remove the ".cache" portion. I'll make a ticket to remind us.

Merged and done.