How to fix “Attempted relative import in non-package” even with __init__.py

Question

I\'m trying to follow PEP 328, with the following directory structure:

pkg/
  __init__.py
  components/
    core.py
    __init__.py
  tests/
    core_test.py         


        

Answer 1

As you have already marked everything as a module, there's no need to use the relative reference if you launch as python module.

Instead of

from ..components.core import GameLoopEvents

simply

from pkg.components.core import GameLoopEvents

When you run from the parent of pkg, use the following

python -m pkg.tests.core_test