Python module import issue subdir

Question

I have the following directory structure in my Python3 project:

├── README.md
├── requirements.txt
├── schemas
│   ├── collector.sql
│   └── controller.sql
├── src
│   ├── controller.db
│   ├── controller.py
│   ├── measurement_agent.py
├── tests
│   ├── regression.py
│   ├── test-invalid-mac.py
│   ├── test-invalid-url.py
│   ├── test-register-ma-json.py
│   ├── test-register-ma-return-code.py
│   ├── test-send-capabilities-return-code.py
│   ├── test-valid-mac.py
│   └── test-valid-url.py
└── todo

In my tests folder I have some regression tests which are ran to check the consistency of the code from src/measurement_agent.py. The problem now is that I do not want to add to my path manually the measurement_agent.py to make an import from it. I would want to know if there is any trick how to tell Python to look in my root for the import I am trying to use.

Currently I am doing:

import os.path

ma = os.path.abspath('..') + '/src'
sys.path.append(ma)

from measurement_agent import check_hardware_address

and would want to have something just like

from measurement_agent import check_hardware_address

without using any os.path tricks.

Any suggestions?

Why can't you just set $PYTHONPATH in the test target in your Makefile? — Ignacio Vazquez-Abrams
– Ignacio Vazquez-Abrams, Commented May 24, 2014 at 23:06
I would want to make it as seamless as possible without using any folder paths. — Ungureanu Vlad
– Ungureanu Vlad, Commented May 24, 2014 at 23:09

Henry · Accepted Answer · 2014-05-24 23:15:54Z

1

Relative imports

Make sure there is an __init__.py in all folders including the top-most (the parent)
Use a relative import, like this:

from ..src import measurement_agent
Now to run your code, cd up to the parent of your parent directory and then

python -m parent.test.regression

answered May 24, 2014 at 23:15

Henry

6,6402 gold badges26 silver badges30 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Henry Over a year ago

I notice you don't want to use folder paths, well I suppose my answer does use folder paths in a sense. The fact is you cannot load a python module without python knowing where the module is :) You can either make the entire thing a package (my answer) or add paths, as you already know.

Ungureanu Vlad Over a year ago

It uses folders but in a more seamless way. I do not have to hard-code paths or something like this. Just the 'src' which is will be on the deployment platform.

Collectives™ on Stack Overflow

Python module import issue subdir

1 Answer 1

Relative imports

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Relative imports

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related