How would you like to declare runtime dependencies and Python requirements for PEP 723?

Packaging Standards
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And I do! PR to update the PEP incoming …

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My acceptance PR is at PEP 723: accept the PEP by brettcannon · Pull Request #3616 · python/peps · GitHub .

@pf_moore is the note about what it will take to reach final meet your general desires for this?

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84

Related to the following note from the PEP:

This PEP will be declared final once it has been specified at packaging.python.org and there have been a couple of implementations of the spec.

I have implemented inline script metadata in viv. See the docs for more info.

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I’ve approved the change because I don’t want to be a blocker, but personally I would like the PEP to be implemented in pipx and pip-run, not just “a couple of places”. I’m not particularly happy with causing a split between “old” and “new” style script runners, which is what ignoring pipx and pip-run would do, IMO.

Full disclosure - I’ve done as much as I’m willing to push PEP 723 to completion here, so I don’t intend to raise issues or PRs for pipx and pip-run myself (and I won’t adopt PEP 723 personally until they support it). So whether @ofek pushes that through or someone else steps up, I’m not sure.

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Looks like it has been updated on pipx: fix: use modern PEP 723 syntax, fix mistake in name by henryiii · Pull Request #1180 · pypa/pipx · GitHub

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Sigh. I nerd-sniped myself. PR for pip-run: Implement PEP 723 support (script dependencies in a TOML block) by pfmoore · Pull Request #96 · jaraco/pip-run · GitHub.

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88

The next minor release of Hatch will support this.

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I’m curious what “this” is, precisely. Do you mean pipx/pip-run functionality, where you can execute something like hatch run foo.py (even in a directory that’s not a project managed by hatch) and it will pick up the dependencies, create a temporary environment, and run the script in that environment? Or do you mean something more specific to hatch’s standard workflow, tied to its environment management mechanisms?

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The former hatch run foo.py but under the hood I would reuse the existing tooling. As someone else mentioned in a different thread I’m basically just going to remap some config and pretend the file is a project, transparently of course.

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91

For folks who didn’t look at the final PR or PEP, a note about this was added.

I guess the next step is to get Inline script metadata - Python Packaging User Guide updated.

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I opened a PR to mark as final: PEP 723: Mark as final by ofek · Pull Request #3772 · python/peps · GitHub

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94

I was not made aware Pex had promised support for this, but I stumbled upon PEP 723 (final) several days ago. Pex now supports this:

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