For my next "goal" with pants (pun intended 😉), I need to replace an old Makefile lint target that uses some ugly

find ... | xargs -0 cat | grep ...

commands to ensure that certain python modules do not import others. The purpose is to prevent circular dependencies, or to make sure that a client lib does not accidentally depend on server libs that don't get released. So, are there any pants goodies to help with circular dependency linting?