Run python file in blender from command line

Question

I have the following structure:

The repo folder is located over ~/Desktop/Github/ and when I run from the command line blender --background --python ./Desktop/Github/repo_folder/main.py I get the following error:

I want to import all the classes/functions in utils.py to main.py to do that I tried the following things:

1) from scripts.utils import * got an error that scripts module wasn't recognized.

2) moved main under scripts and edited the line from .utils import *

3) tried to create __init__.py file under scripts

I use python 3.6.8 on Ubuntu 18.04 when trying (1) no errors marks shown over the IDE (Pycharm) Blender version - 2.8 installed using snap (if that helps)

Thank you for helping!

Answer 1

Found the solution! since using third party (Blender)

import sys
sys.path.insert(0, <path_to_repo>)

is needed to set the environmental variables

Answer 2

An example that should work with Blender 2.80:
The directory:

folder
  | -> main.py
  | -> scripts
         -> __init__.py
         -> hello.py

scripts/__init__.py:

from scripts.hello import *

scripts/hello.py:

def hello():
    print('Hi')

main.py

import bpy
import sys

if __name__ == '__main__':
    sys.path.append('')
    import scripts
    scripts.hello()

And you launch it with: blender -b -P main.py.

---

Adding Avivsham's answer below. The script directory must be in path. Lazy dynamic loading (put at the beginning of your file):

import sys
from pathlib import Path
scriptDir = Path(__file__).parent.absolute()
if scriptDir not in sys.path:
    sys.path.insert(0, str(scriptDir))