general python question: when we define a

datatype

with tuples of

("field_name", type_specifier)

, what's the best way to make some of those fields have defaults?

in general, using

@dataclass

lets you get pretty much everything you'd expect from

datatype()

-- https://github.com/pantsbuild/pants/pull/6374/files has been lying in wait for a while, and can probably be abandoned

as long as we explicitly import

dataclass

it's fine to use anywhere in python code, right?

yes, and make sure to depend on

3rdparty/python:dataclass

in any BUILD file