Module not found and __main__ is not a package in python import

Question

I have following struct of the folder for my python code and I am using Python3.

python_lib/
      model_driver/
         __init__.py
         globals.py
         sb_driver.py
         test_driver.py

In test_driver.py, I have imported the modules as it is give below

from .sb_driver import*
from .globals import *

When I import sb_friver.py in test_driver.py then I have following error comes up.

ModuleNotFoundError: No module named '__main__.sb_driver'; '__main__'is not a package

I have even tried without '.' in front of module.But I have had no luck.

Answer 1

Run the module from inside the model_driver folder using the -m switch

$ cd python_lib
$ python -m model_driver.test_driver

Using the -m switch model_driver will be registered as a package and relative imports will work. Using the m switch and running from the parent folder of the package is the correct way of running your srcipts - for details see here