This is weird and concerning. In the plugin repo, when adding a new test and trying to run via `./pants test`:

pants-plugins/examples/bash/lint/shellcheck/rules_test.py:12: in <module>
    from pants.core.goals.lint import LintResult, LintResults
E   ModuleNotFoundError: No module named 'pants.core'

I can’t reproduce in Toolchain. And the plugin works when running via

./pants lint

. There are no import errors for the production code

this is for the same pants release used at toolchain?

This is for the example Bash repo. I’ll push in a moment

thanks!!

Thanks for taking a look! I suspected it’s an issue with

__init__.py

because Pytest handles those weirdly. But, we include those all in the dist. And what’s weird is that the same problematic import works for a Toolchain test, which also runs via the wheel

pantsbuild.pants.testutil

rather than running from sources

This feels like a namespace package issue of some kind.

Note that we don’t actually set

namespace_packages

in the wheel. It gets overridden to be empty accidentally