Submodule Couldn't Import Parentmodule (python)

These are the directories of my module: mymodule |-__init__.py |-file1.py |-file2.py |-test |-__init__.py |-test_file1.py |-test_file2.py test_file1.py contains this command

Solution 1:

For the module test.test_file1, test is your top-level package. You can't go outside that for relative imports; you can only reach other modules within the test package.

Either run python3 -m unittest mymodule.test.test_file1 (with your working directory set to the parent directory of mymodule) or add mymodule to your Python path and use from mymodule import file1.

Generally, best practice is to put a testsdirectory next to your project:

mymodule
|-__init__.py
|-file1.py
|-file2.py
tests
|-test_file1.py
|-test_file2.py

Note that there is no __init__.py file, but some test runners (specifically pytest, may require one).

This is how the Django project itself organises tests, as do most other Python projects (see, for example, click, requests or flake8). Use a test runner to discover tests, like nose.

You'd need to add your mymodule parent directory to the Python path for this to work, of course, so you may want to add

import os
import sys
here = os.path.dirname(os.path.abspath(__file__))
sys.path.insert(0, os.path.dirname(here))

to the top of your test files, or to put that into a utils.py file you put in your tests directory.

Also see the Structure section of the Hitchhikers Guide to Python.