Support for Poetry

[mixxorz]

Poetry is a python package manager, similar to Pipenv.

At the moment, heroku-buildpack-python supports both vanilla pip (via requirements.txt) and Pipenv (via Pipfile, Pipfile.lock). Unfortunately, there's been a lot of backlash with regards to Pipenv in the Python community, and on the back of that, Poetry was born to serve as a better Pipenv.

That being said, it would be good if this buildpack can detect and install dependencies using Poetry. The package manager uses two files: pyproject.toml (which has been provisionally accepted in PEP 518) and poetry.lock.

[kennethreitz]

Perhaps a bin/install would be appropate (in the app repo), which would replace the entire pip install step with whatever logic you like!

[CaseyFaist]

Hey there! It's on the product roadmap to add experimental Poetry support - there's a user submitted PR #801 that I might be able to iterate on. I'll circle back in a few weeks with a progress update, but keep an eye on that pr for more details for now 👍

[bsdz]

I think one wouldn't need explicit poetry support but simply the latest version of pip (>19.). See python-poetry/poetry#321. Would be nice if one could easily configure which pip version is used from a buildpack runtime.txt or similar.

[rschuetzler]

It looks like #801 was closed by the user. Any update on the status of Poetry support?

[bsdz]

It looks like #801 was closed by the user. Any update on the status of Poetry support?

Not sure if helpful but another PR (by me) also adds Poetry Support

[b0g3r]

Looks like progress about feature is frozen :(

[cjolowicz]

Here is a series of PRs which implement support for Poetry and other PEP-517 compliant build backends:

• Upgrade to pip 19 #833
• Support pyproject.toml #834
• Support poetry.lock #835

[RobRoseKnows]

Curious as to the status of this. There seems to be numerous community PR to do this, but none of them are merged.

[CaseyFaist]

Thanks for checking in on the status y'all - the first of @cjolowicz 's prs (pip update to 20) has been merged and released, and fully plan on working through the last two of that trio to provide poetry support. I'll leave this issue open until resolved, but will close other Poetry feature requests so we can track progress and questions in one place.