How to import a module from a sibling directory that imports modules in its directory in Python 3.9 without modifying sys.path?

Question

My project file structure looks something like this:

hyphenated-project-root/
    __init__.py
    src/
        __init__.py
        module0.py
            > from module1 import MyClass
            > import module2
        module1.py
            > class MyClass: ...
        module2.py
            > from module1 import MyClass
    scripts/
        __init__.py
        script1.py
            > import module2

The __init__.py files are empty and both module0.py and script1.py have __name__ == "__main__": blocks. I'm using Python 3.9 on a Mac M1.

I would like to be able to run python src/module0.py arg1 arg2 as well as python scripts/script1.py (or python -m scripts.script1) from my terminal in the project root.

I've tried several variations of import module2, modifying the __init__.py files, nesting scripts/ under src/ and messing with import_module from importlib, but I keep getting ImportError or ModuleNotFoundError.

If possible, I would like to avoid modifying sys.path. To a lesser extent, I would also like to avoid using setuptools.

I know there are several SO questions/answers on this topic, but I can't figure out what I'm doing wrong. (My hunch is that Relative imports for the billionth time would be helpful for most others coming from Google.) Please advise.

How to import a module from a sibling directory that imports modules in its directory in Python 3.9 without modifying sys.path?

0 Answers0