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

For me only this worked: I had to explicitly set the value of package to the parent directory, and add the parent directory to sys.path

from os import path
import sys
if __package__ is None:
    sys.path.append( path.dirname( path.dirname( path.abspath(__file__) ) ) )
    __package__= "myparent"

from .subdir import something # the . can now be resolved

I can now directly run my script with python myscript.py.