I put

pants_requirement(name="pants", dist="pantsbuild.pants")

in

pylint-plugins/BUILD

as recommended in the docs. But now, I'm getting an ugly error when I try to regen constraints:

ERROR: Could not find a version that satisfies the requirement pantsbuild.pants==2.5.0rc2 (from versions: 0.0.17, 0.0.18, 0.0.20, 0.0.21, 0.0.22, 0.0.23, 0.0.24, 0.0.25, 0.0.26, 0.0.27, 0.0.28, 0.0.29, 0.0.30, 0.0.31, 0.0.32, 0.0.33, 0.0.34, 0.0.35, 0.0.36, 0.0.37, 0.0.38, 0.0.39, 0.0.40, 0.0.41, 0.0.42, 0.0.43, 0.0.44, 0.0.45, 0.0.46, 0.0.47, 0.0.48, 0.0.49, 0.0.50, 0.0.51, 0.0.52, 0.0.53, 0.0.54, 0.0.55, 0.0.56, 0.0.57, 0.0.58, 0.0.59, 0.0.60, 0.0.61, 0.0.62, 0.0.63, 0.0.64, 0.0.65, 0.0.66, 0.0.67, 0.0.68, 0.0.69, 0.0.70, 0.0.71, 0.0.72, 0.0.73, 0.0.74, 0.0.75, 0.0.76, 0.0.77, 0.0.79, 0.0.80, 0.0.81, 0.0.82, 1.0.0, 1.0.1, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.4.0, 1.5.0, 1.6.0, 1.7.0, 1.15.0, 1.16.0, 1.17.0, 1.18.0, 1.19.0, 1.20.0, 1.21.0, 1.22.0, 1.23.0, 1.24.0, 1.25.0, 1.26.0, 1.27.0, 1.28.0, 1.29.0, 1.30.0, 1.30.1, 1.30.2, 1.30.3, 1.30.4rc0, 1.30.4, 1.30.5rc0, 2.0.0a0, 2.0.0a1, 2.0.0a2, 2.0.0a3, 2.0.0b0, 2.0.0b1, 2.0.0b2, 2.0.0b3, 2.0.0rc0, 2.0.0rc1, 2.0.0rc2, 2.0.0rc3, 2.0.0, 2.0.1rc0, 2.0.1rc1, 2.0.1rc2, 2.0.1rc3, 2.0.1rc4, 2.0.1, 2.0.2rc0, 2.0.2, 2.1.0.dev0, 2.1.0rc0, 2.1.0rc1, 2.1.0rc2, 2.1.0rc3, 2.1.0, 2.1.1rc0, 2.1.1rc1, 2.1.1rc2, 2.1.1, 2.1.2rc0, 2.1.2)
ERROR: No matching distribution found for pantsbuild.pants==2.5.0rc2

Any ideas on what to do for that?

I suspect the

python

being used in

generate_constraints.txt

is not Py37 - Py39. The release does exist with the correct files there https://pypi.org/project/pantsbuild.pants/2.5.0rc2/#files, but you have to use the correct interpreter If true, you'd change that

python

value to be something more precise like

python3.7

doh. I have it constrained to 3.6.

how come? Also note that this is only relevant to run Pants on your plugin itself, like run tests and linters on it. It's not required for your plugin to work

Because st2 code is 3.6 only (a few others are working on adding 3.8 support). So, i have

interpreter_constraints=["CPython==3.6.*]

Ah, got it. Yeah, this is a good example of the need for multiple lockfiles.. sg, I fear dropping the pants_requirement is yeah the best thing for now. Good to know this is a rough spot of plugin API

Wait - the only problem here is

pants_requirement(...)

right? If instead you used a regular requirement string with an environment marker for pantsbuild.pants, and different interpreter constraints for your plugin target(s), you'd be fine.

Oh, ttrue

All

pants_requirement

really does is ensure your pants versions match. You could just add a comment saying KEEP SYNCED.

it also sets

module_mapping={"pantsbuild.pants": ["pants"]}

, which I'm realizing we could simply set in the DEFAULT_MODULE_MAPPING now that that exists

Yeah, that'd be good.