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Pants

do `__defaults__` apply before or after target generation? i.e. can I get away with only listing defaults for `python_source` and `python_test` , or do I need to use `(python_sources, python_source)` and `(python_tests, python_test)` to be sure I cover everything?

defaults are applied to the `TargetAdaptor`s as they are created.

you must apply defaults to the generators themselves tho

yeah so in my example, I need both `python_tests` and `python_test`

as the defaults aren’t applied to anything not declared in the BUILD file

you need both if you use both in your BUILD file

filed <https://github.com/pantsbuild/pants/issues/17450>