Does or will hatch solve the dependency solving in any meaningful way?

[cozyGalvinism]

Heya, I just heard about this project and it looks good on paper, though one thing that always stings in Python project management is the solving of dependencies due to PyPi's lack of enforcement for metadata on packages.

How will (or if already in place, how does) hatch solve this problem? Poetry faces this issue as well as Pipenv, yet both rely on PyPi so much, it actually hurts to set up a Python project that has only a handful of these packages without metadata, since the dependency resolution process can take up hours.

Thank you in advance!

[ofek]

Hey thanks!

Locking/resolving support is temporarily blocked https://ofek.dev/hatch/latest/meta/faq/#libraries-vs-applications

[Hnasar]

@cozyGalvinism I'd suggest using both Hatch and PDM simultaneously if you have the need for it! Like Hatch, PDM works fine with standard PEP 621 metadata in pyproject.toml. For example, without changing anything in your existing project using Hatch, you should be able to do:

pdm config python.use_venv True
python3 -m venv venv
venv/bin/activate
pdm lock  # generate a pdm.lock with dependencies for the first time
pdm add example  # add an example new dependency, and run dependency resolver
git add pdm.lock && git commit -am "Use pdm to lock dependencies"

and then on a different machine you can install the exact locked dependencies with:

pdm sync --no-editable

(Also, PDM's dependency resolver is much faster than Poetry's.)

@ofek, Just to explain my experiences: I had considered using Hatch a few months ago, but locking dependencies was a critical feature. I found that https://github.com/pdm-project/pdm had both locking and support for the latest standards. So that's what I've been using. It works really well!

But today I realized my need for Hatch! Compared to PDM, Hatch has much better support for dynamic package builds including custom VCS versioning, and renaming/moving files during the build process. I spent several days fighting with setuptools and various PDM hook scripts and was so relieved to find that Hatch has support for these things. Thank you for developing this!!

[ofek]

Thanks for the kind words, I'm very glad Hatch is helpful to you!

[ofek]

Closing for now