Support pyproject.toml for Python requirements

[waltsims]

After migrating our project from requirement files to pyproject.toml, out sphinx build has broken.

Current behavior is sphinx-notes pages fails if requirements are in pyproject.toml file.

Feature request would be to:

Add support for pyproject.toml requirements specification.

e.g. pip install '.[docs]'

[SilverRainZ]

Hello waltsims, thanks for your contribution.

I'm not very familiar with poetry so I have a few questions.

• What is the usage pip install '.[docs]' called? I can't find it from pip install --help.
• is docs a conventional name? Maybe we can make it the default?

[waltsims]

Hi @SilverRainZ,

The usage of the pyproject.toml file is described extensively in PEP 621 and can be found under the key-words dependencies and optional-dependencies.
I don't know if there are any conventions on optional dependency naming so I cannot answer weather or not '.[docs]' should be a default value. I can say though that pip install . installs the base dependencies, which is why I selected it as the default value for my PR.

I have my k-wave-python project currently successfully using my fork of your repository to build the project docs.