Is pep517 the best option for building packages today?

IMHO the best practie for now to build packages is https://pypi.org/project/pep517/, as it automatically sets up build dependencies.

1 Like

I don’t know if I’d call it best practice, but more of this is the only way to do stuff correctly at this time. I guess, it’s best in the sense that it’s the only way to do this. There are still some caveats with straight up using this, but this is the approach that’ll work best for most users.

More context for anyone not familiar: Building distributions and drawing the Platypus

1 Like

Not sure if I’m aware of these :thinking: can you detail?

Some points to consider here:

  1. Pip only uses the “hook calling wrappers” functionality in pep517, the rest of the code is relatively untested “in the wild”.
  2. The build environment management code is definitely not as battle-tested as pip’s (there were some nasty edge cases that pip’s code identified and addressed, I don’t know if pep517 is susceptible to them).
  3. The command line front end to pep517 is a very basic proof of concept. The question of whether it will remain a supported interface is still very much open for debate, and people who rely on it should be prepared for the possibility of it being removed, should a “proper” tool be developed. See this issue comment for context (disclaimer: it’s my personal view, and I’m not the project owner).

I’ve been using in all my projects all the time and never ran into any other issues.

IMHO creating a new recommended tool does not imply that pep517 would break. Sure we might end up down the line with another tool, but until then pep517 is a major improvement over python setup.py invocations, and IMHO should be preferred over it.

For what it’s worth, I wish the pep517.build and pep517.check functionalities were integrated into twine. I believe it would offer a great workflow for people in the role of a Python library (or application) developer: check build backend, build distributions, check distributions, publish distributions.

(Hopefully I’m not going too far off-topic with that.)

I’ve flagged this thread for moderators to move out the discussion about pep517 the library.