Relative import methods in Python

relative_import.md

1. Best way is editable pip packages (reference)

pip install --editable /path/to/package

You need to include a minimal setup.py

from setuptools import setup, find_packages

setup(
    name="packagename",
    version="1.0",
    author="[AUTHORNAME]",
    description="[DESCRIPTION]",
    packages=find_packages(),
)

p.s. It is also possible to use repositories as editable (thanks chatGPT)

pip install --editable git+https://github.com/user/repo.git#egg=package

2. sys.path method

import os
import sys
#### Include upper dirs start
dpath = os.path.dirname(os.path.abspath(__file__))
for i in range(1): ## For more than one level of folders you can increase this number
    dpath = os.path.dirname(dpath)
sys.path.insert(1, dpath)
#### Include upper dirs end

3. Set a PYTHONPATH (I never tried this one)