Yep. As long as you have a package that is the same name in the same directory, you'll have access to all the same identifiers in the package. This is good for

Yep. As long as you have a package that is the same name in the same directory, you'll have access to all the same identifiers in the package. This is good for white box testing. In the other direction, you could have used package_test to test from a black box perspective where you must import the package and use its exported identifiers.