What is the plan for supporting build tools backends

[julie777]

I understood the comment about only supporting Git. Probably more than 80% of developers are using it.

We have multiple issues and discussions that reference pyproject.toml, I spent the last couple days immersed in PyPA docs and all the PEPs that relate to pyproject.toml.

My conclusion is that as some point pyscaffold will need to support other build tools besides setuptools. Has there been any thinking or discussion about how that could be accomplished?

[abravalheri]

pyscaffold will need to support other build tools besides setuptools

I think of that more of a "nice to have" than a "will need".
I was thinking that this could be accomplished via extensions (either distributed directly with PyScaffold, or 3rd Party).

E.g. probably we want to ship something like putup --flit in the future...

[FlorianWilhelm]

When setuptools switches to pyproject.toml what is the advantage of using any of the other backends like flit, poetry, etc. compared to it from a developers perspective?

[abravalheri]

Sorry, I meant that poetry seems not to support PEP 621 (the original phrase was confusing, I corrected it now)

[FlorianWilhelm]

Ah, okay so what poetry has under [tool.poetry] would need to go into [metadata] or actually [project] (according to PEP 621)?

[abravalheri]

Just to wrap up my line of thought:

• When setuptools supports PEP 621, I think we can assume that swapping very "barebones" backends will work out of the box and even consider adding something like --flit.
• We can consider creating pyscaffoldext-poetry, but that will basically just reuse the very basic build blocks of PyScaffold and should not be considered to interoperate with the existing extensions.

Question, does poetry interoperates well with conda?

[abravalheri]

Ah, okay so what poetry has under [tool.poetry] would need to go into [metadata] or actually [project] (according to PEP 621)?

Yes, if poetry was to support PEP 621, most of what is inside [tool.poetry] should go to [project] (after the required changes, because each table support different fields)

[FlorianWilhelm]

Question, does poetry interoperates well with conda?

This depends. If we only use the build-backend of poetry then users can decide if they use poetry, pipenv or conda to manage their environments. Mixing things will not work I guess.