[cik]

We just went through this cycle - ultimately we build packages (debs) and dockers, for deployment within VMs. Our build process - depending on the component pushes the deb to repos, or uses the deb in the docker.

After trying to replace pip with Pipenv, we had to stop. The dependency resolution time for 20 declared dependencies (that in turn pull down > 100 components) takes well over 5 minutes. With poetry - it takes less than 33 seconds on a clean system. The times are consistent for both Ubuntu 16.04 and Mac OS X.

Our only goal is to get to the point we're now in - tracking dependencies, and separate dev requirements (like ipython and pdbpp) from our other requirements. Poetry made it fast, simple, and made me an addict.

Over two days, I moved our entire codebase and every single (active) personal project I had to poetry. I don't regret it :)

[abalaji]

I can second this... poetry is a seriously good project and matches PEP standards for the pyproject.toml, you will definitely see more projects jumping onto that standard soon.

[ihumanable]

Sébastien Eustace is a really awesome developer, I've used Pendulum and Orator as well as Poetry for projects, the documentation is beautiful and complete, the APIs are well thought out, and if you find an issue contributing back to the project is simple and straightforward (I'm happy to have a few PRs accepted into Orator).

There's a certain joy working with tools when it's clear that the person making those tools actually cares about the developer and making it work well.

[cik]

That was the part that made me try it, literally while waiting for Pipenv to resolve.

[orf]

Slow dependency resolution is a known problem and will be fixed in a newer release. The reason is not entirely pipenvs fault (curse be to setup.py), and the pipenv maintainers are mimicking the somewhat novel method twine uses.

[edmorley]

I was about to rule out Poetry due to pyup not supporting it, however it turns out Dependabot (which as a bonus looks to be more actively maintained than pyup) supports it:

https://dependabot.com/blog/announcing-poetry-support/

[_x5tx]

I did have the same problem, and apart from taking too long for dependency resolution it felt like breaking up at each update, sometimes from pipenv update, sometimes from pip update making pipenv breaking. I migrated to poetry and never been happier.