currently we are using faiss-cpu package in poetry via

faiss-cpu = "1.7.4"

but when I'm running

:pants test ::

I get

import faiss
E   ModuleNotFoundError: No module named 'faiss'

Since the package name does not match its import name, you need to use module_mapping in order for Pants to understand it.

If you have a moment, we'd appreciate if you could submit a pull request adding it to the default mappings pants has internally, so that it's smoother for future users (and so that you can simplify your config once you upgrade to a version with it): https://github.com/pantsbuild/pants/blob/f51e54ebb2d698b7bd6b12d9967ebb1b03e9a95a/src/python/pants/backend/python/dependency_inference/default_module_mapping.py#L144-L145 Thanks!

will do

thank you!