Draft to move from setup.py to pyproject.toml

[samuelgarcia]

Hi @apdavison @JuliaSprenger I think the new trend is to move from dynamic setup (setup.py) to static declaration (pyproject.toml). There somes peps about this and I think it help many tools for building and packaging.

Here a first draft for this. Normally everything is centralize in pyproject.toml.

It still use setuptools for building but the medata come from pyproject.toml.

If you have time to make feeback on this. It would be cool.

EDIT:

• I needed to remove python3.7 and some numpy for core-test. I guess that pyproject.toml is not compatible with theses versions.

[samuelgarcia]

doc/source/conf.py will need to be updated to get the version string from the metadata file.

Oups. I also forgot that. Is it still necessary in sphinx to put this variable or is it automatic now ? Do when parse the pyproject.toml for this ?

[samuelgarcia]

@apdavison : other question. Do we keep this minimal setup.py ?

Or do we switch to ?

• pip install . only instead of python setup.py install
• pip install -e . only instead of python setup.py develop
• build package of python with python -m build --wheel instead of python setup.py sdist

I will no modify NOT the doc because you are working inanother PR on it but maybe you could propagate this also no ?