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Pants

Has anyone had issues with `pants test` give a `Module not found error` to find their core module when using `import &lt;core_module&gt;` in the tests? We've had this issue for a while but have circumvented it by just running pytest directly in an exported environment, would be nice to not have to do that.

Sorry the actual root module of the package being built

Was just trying to indicate that there's no "import path" other than `import x` i.e. no `import x.y.z`

It acts as though the package is not installed when running the tests

This has most probably to do something with how you define source roots

Could this have anything to do with having namespace packages?

Yes I think that's the issue. Maybe post the repo structure you are using to figure out what's not aligned with the pants/python expectations.