setup.py build warning

[glenrobson]

This is the warning I've seen in other projects when running python setup.py test:

WARNING: Testing via this command is deprecated and will be removed in a future version. Users looking for a generic test entry point independent of test runner are encouraged to use tox.

[giacomomarchioro]

To my understanding, the scope of the warning is to limit the setup tool for the building of the package, while using CI and dedicated software e.g. tox for what concerns the testing. There is an extended discussion on the pro and cons of this developer choice in this setuptool issue.

So in my opinion the solution could be simply to call the tests in a separate file/process.

I usually use Travis CI with something like this:

language: python
python:
  - "3.6"      # current default Python on Travis CI
  - "3.7"
  - "3.8"
  - "3.9"
  - "3.9-dev"  # 3.9 development branch

# command to install dependencies
install:
  - pip install -r requirements.txt

# command to run tests
script:
  - python -m unittest discover -s tests

Where tests is a folder containing the tests.
But I think something similar could be achieved with GitHub Actions.

[glenrobson]

Maybe possible to reference the requirements.txt in the setup.py to avoid duplication.

[glenrobson]

It looks like this is the answer to deduplicating the setup.py and requirements.txt but I don't need it at the moment as the tests work without an extra import:

https://stackoverflow.com/questions/43658870/requirements-txt-vs-setup-py

[glenrobson]

I think this can be closed now.