How to init the pyproject.toml file

Question

I found that python can use pyproject.toml to list dependencies instead of requirements.txt file. It's more convenient and is very similar to package.json for node.However, I could not find a documentation to init the pyproject.toml file much like the npm init command. How to autogenerate the file with virtualenv or pip? also, is there a way to autoupdate the toml file, as the packagaes get installed, much like npm --save tag, that saves the package to the package.json as its installed?

Clinkstone

Look into a project called poetry it can do it for you quiet neatly. – Oligocene

I feel like Pipenv is more closer to having a package.json – Confectionery

Agree, but not to the pyproject toml as of the upcoming standardisation – Oligocene

python.org/dev/peps/pep-0518/#specification – Dimorph

poetry init in the project root dir, answer the questions, done. – Eucharist

What are you asking exactly? There are many tools that store configuration in that file. poetry is one of them, so is flit, and a bunch of others. Some can cohabit peacefully, some might not. From the details in your question, poetry might be indeed a strong candidate, but it has its own quirks and limitations, so you have to make sure it is what you want to buy. But really a pyproject.toml is just 2 or 3 lines (the [build-system] section) as per the specification @Dimorph linked to in its comment. Every other section in that file is most likely specific to a tool and non standard. – Buoyant

Maybe there is a cookiecutter somewhere that allows you to choose a build-system (poetry, filt, setuptools, etc.) interactively and populate the pyproject.toml accordingly. – Buoyant

You could give PDM a try. It has an init feature: pdm.fming.dev/latest/usage/hooks/#initialization – Perseid

Answer 1

Look at poetry. It can do it for you nicely. Actually I think its the only project that handles this already that I know of.

Oligocene

Yeah, the toml files are not natively supported by python – Confectionery

TOML is now natively supported in Python (as of 3.11). :-) An alternative to poetry that has full support for the pyproject.toml file is pdm: pdm.fming.dev/latest – Perseid