old python_requires value in setup.py prevents pip installation

[ewohnlich]

setup.py still has python_requires==2.7. I've been using 4.0.0 in python3/Plone5.2 just fine (I think Plone 5.2 is python 3 only?). Can this be removed?

[ewohnlich]

FWIW buildout doesn't seem to care about that requirement. I suspect most people are using this with buildout and that's why it's not noticed. In my case, I had a custom package using this one that has gitlab CI/CD using ossaudit. ossaudit works by inspecting the venv and doesn't understand buildout, so I need to pip install in the test environment to run that.

[wesleybl]

The package has no classifier for Plone 5.2 with Python 3. It is not tested with Plone 5.2. I think to add classifier from Plone 5.2, would have to make the tests work in Plone 5.2.

PS: I would have to change Travis to github actions